Exact Match:
Synonyms:
- no synonyms found
Related Words:
- downdraft
collapse - a strong downward air current related words >
- affluence,
- afflux,
- affluxion,
- air current,
- crosscurrent,
- current,
- current of air,
- downdraft,
- draft,
- fall wind,
- flow of air,
- following wind,
- head wind,
- indrawing,
- inflooding,
- inflow,
- influx,
- influxion,
- inhalation,
- inpour,
- inrun,
- inrush,
- inspiration,
- jetstream,
- katabatic wind,
- monsoon,
- movement of air,
- stream,
- stream of air,
- tail wind,
- undercurrent,
- updraft,
- wind
- CAT,
- aerospace,
- aerosphere,
- air current,
- air hole,
- air pocket,
- airspace,
- backing wind,
- beam wind,
- bump,
- ceiling,
- crosscurrent,
- crosswind,
- current,
- current of air,
- downdraft,
- draft,
- empty space,
- fair wind,
- fall wind,
- favorable wind,
- flow of air,
- fog,
- following wind,
- front,
- head wind,
- high-pressure area,
- hole,
- indraft,
- inflow,
- inhalation,
- inrush,
- inspiration,
- ionosphere,
- jetstream,
- katabatic wind,
- low-pressure area,
- monsoon,
- movement of air,
- overcast,
- pocket,
- relative wind,
- roughness,
- slant of wind,
- soup,
- space,
- stratosphere,
- stream,
- stream of air,
- substratosphere,
- tropopause,
- troposphere,
- trough,
- turbulence,
- undercurrent,
- updraft,
- veering wind,
- visibility,
- visibility zero,
- wind
- affluence,
- afflux,
- affluxion,
- air current,
- crosscurrent,
- current,
- current of air,
- downdraft,
- draft,
- fall wind,
- flow in,
- flow of air,
- following wind,
- head wind,
- indraft,
- indrawing,
- inflood,
- inflooding,
- inflow,
- influx,
- influxion,
- inhalation,
- inpour,
- inpouring,
- inrun,
- inspiration,
- jetstream,
- katabatic wind,
- monsoon,
- movement of air,
- pour in,
- stream,
- stream of air,
- tail wind,
- undercurrent,
- updraft,
- wind
- Beaufort scale,
- aerography,
- aerology,
- anemometry,
- barometric wind rose,
- barometry,
- climatography,
- climatology,
- dynamic wind rose,
- forecasting,
- long-range forecasting,
- meteorology,
- microclimatology,
- nephology,
- pneumatics,
- rain wind rose,
- temperature wind rose,
- weatherology,
- wind arrow,
- wind direction,
- wind force,
- wind marker,
- wind rose
- fall through
collapse
- fail utterly; collapse; "The project foundered" related words >
- CAT,
- aerospace,
- aerosphere,
- air current,
- air hole,
- air pocket,
- airspace,
- bump,
- ceiling,
- crosscurrent,
- crosswind,
- current,
- current of air,
- downdraft,
- draft,
- empty space,
- fall wind,
- favorable wind,
- flow of air,
- fog,
- following wind,
- front,
- head wind,
- high-pressure area,
- hole,
- indraft,
- inflow,
- inhalation,
- inrush,
- inspiration,
- ionosphere,
- katabatic wind,
- low-pressure area,
- monsoon,
- movement of air,
- overcast,
- pocket,
- roughness,
- soup,
- space,
- stratosphere,
- stream,
- stream of air,
- substratosphere,
- tail wind,
- tropopause,
- troposphere,
- trough,
- turbulence,
- undercurrent,
- updraft,
- visibility,
- visibility zero,
- wind
- monsoon
collapse
- a seasonal wind in southern Asia; blows from the southwest (bringing rain) in summer and from the northeast in winter
- any wind that changes direction with the seasons
- rainy season in southern Asia when the southwestern monsoon blows, bringing heavy rains related words >
- air current,
- cat-and-dog weather,
- crosscurrent,
- current,
- current of air,
- dirty weather,
- downdraft,
- draft,
- fall wind,
- flow of air,
- following wind,
- head wind,
- indraft,
- inflow,
- inhalation,
- inrush,
- inspiration,
- jetstream,
- katabatic wind,
- movement of air,
- predominance of Aquarius,
- raininess,
- rains,
- rainy day,
- rainy season,
- rainy weather,
- spell of rain,
- spring rains,
- stormy weather,
- stream,
- stream of air,
- tail wind,
- undercurrent,
- updraft,
- wet,
- wet season,
- wet weather,
- wind
- CAT,
- aerospace,
- aerosphere,
- air current,
- air hole,
- air pocket,
- airspace,
- backing wind,
- beam wind,
- bucking,
- bump,
- ceiling,
- challenge,
- contention,
- contradiction,
- contraposition,
- contravention,
- contraversion,
- counteraction,
- counterbalance,
- counterblast,
- countercurrent,
- counterforce,
- counterinfluence,
- counterpoise,
- counterpressure,
- counterweight,
- counterworking,
- crosscurrent,
- crossing,
- crosswind,
- current,
- current of air,
- denial,
- downdraft,
- draft,
- empty space,
- fair wind,
- fall wind,
- favorable wind,
- flow of air,
- fog,
- following wind,
- foul wind,
- front,
- high-pressure area,
- hole,
- impugnation,
- impugnment,
- indraft,
- inflow,
- inhalation,
- inrush,
- inspiration,
- ionosphere,
- jetstream,
- katabatic wind,
- low-pressure area,
- monsoon,
- movement of air,
- negation,
- opposing,
- opposition,
- opposure,
- oppugnation,
- overcast,
- pocket,
- rebutment,
- rebuttal,
- refusal,
- rejection,
- relative wind,
- resistance,
- roughness,
- slant of wind,
- soup,
- space,
- standing against,
- stratosphere,
- stream,
- stream of air,
- substratosphere,
- tail wind,
- traversal,
- tropopause,
- troposphere,
- trough,
- turbulence,
- undercurrent,
- updraft,
- veering wind,
- visibility,
- visibility zero,
- wind
- inflow
collapse
- the process of flowing in related words >
- affluence,
- afflux,
- affluxion,
- air current,
- concourse,
- confluence,
- conflux,
- course,
- crosscurrent,
- current,
- current of air,
- defluxion,
- downdraft,
- downflow,
- downpour,
- draft,
- drift,
- driftage,
- fall wind,
- flow,
- flow in,
- flow of air,
- flowing,
- fluency,
- flux,
- following wind,
- gush,
- head wind,
- indraft,
- indrawing,
- inflood,
- inflooding,
- influx,
- influxion,
- inhalation,
- inpour,
- inpouring,
- inrun,
- inrush,
- inspiration,
- jetstream,
- katabatic wind,
- mill run,
- millrace,
- monsoon,
- movement of air,
- onrush,
- onward course,
- outflow,
- pour in,
- race,
- run,
- rush,
- set,
- spate,
- stream,
- stream of air,
- surge,
- tail wind,
- tide,
- trend,
- undercurrent,
- undertow,
- updraft,
- water flow,
- wind
- inhalation
collapse
- the act of inhaling; the drawing in of air (or other gases) as in breathing related words >
- Aqua-Lung,
- air current,
- artificial respiration,
- aspiration,
- asthmatic wheeze,
- breath,
- breath of air,
- breathing,
- broken wind,
- cough,
- crosscurrent,
- current,
- current of air,
- downdraft,
- draft,
- exhalation,
- expiration,
- exsufflation,
- fall wind,
- flow of air,
- following wind,
- gasp,
- gulp,
- hack,
- head wind,
- hiccup,
- indraft,
- inflow,
- inhalator,
- inhalement,
- inrush,
- inspiration,
- insufflation,
- iron lung,
- jetstream,
- katabatic wind,
- monsoon,
- mouth-to-mouth resuscitation,
- movement of air,
- oxygen mask,
- oxygen tent,
- pant,
- puff,
- respiration,
- scuba,
- sigh,
- sneeze,
- sniff,
- sniffle,
- snore,
- snoring,
- snuff,
- snuffle,
- sternutation,
- stertor,
- stream,
- stream of air,
- suck,
- sucking,
- suction,
- suspiration,
- tail wind,
- undercurrent,
- updraft,
- wheeze,
- wind
- north wind
collapse
- a wind that blows from the north related words >
- mistral
collapse
- a strong north wind that blows in France during the winter related words >
- bomb,
- break down,
- capsize,
- careen,
- collapse,
- come a cropper,
- come to naught,
- come to nothing,
- crash,
- fall,
- fall dead,
- fall down,
- fall headlong,
- fall in,
- fall over,
- fall prostrate,
- fall short,
- fall stillborn,
- fall through,
- fizzle out,
- flounder,
- flunk,
- get a cropper,
- get bogged down,
- get hung up,
- get mired,
- go to smash,
- list,
- lurch,
- peter out,
- pitch,
- poop out,
- spin,
- sprawl,
- spread-eagle,
- stagger,
- stumble,
- take a fall,
- take a flop,
- take a header,
- take a pratfall,
- take a spill,
- tilt,
- topple,
- topple down,
- topple over,
- totter,
- trip,
- tumble,
- turn turtle,
- wash out,
- wear thin
- updraft
collapse
- a strong upward air current related words >
- air current,
- anabasis,
- ascension,
- ascent,
- clamber,
- climb,
- climbing,
- crosscurrent,
- current,
- current of air,
- downdraft,
- draft,
- elevation,
- escalade,
- fall wind,
- flow of air,
- following wind,
- fountain,
- gush,
- gyring up,
- head wind,
- increase,
- indraft,
- inflow,
- inhalation,
- inrush,
- inspiration,
- jet,
- jetstream,
- jump,
- katabatic wind,
- leap,
- levitation,
- monsoon,
- mount,
- mounting,
- movement of air,
- rise,
- rising,
- rocketing up,
- saltation,
- shooting up,
- soaring,
- spout,
- spring,
- spurt,
- stream,
- stream of air,
- surge,
- tail wind,
- takeoff,
- taking off,
- undercurrent,
- upclimb,
- upcoming,
- upgang,
- upgo,
- upgoing,
- upgrade,
- upgrowth,
- uphill,
- upleap,
- uplift,
- upping,
- uprisal,
- uprise,
- uprising,
- uprush,
- upshoot,
- upslope,
- upsurge,
- upsurgence,
- upsweep,
- upswing,
- vault,
- wind,
- zooming
- anemometer
collapse
- a gauge for recording the speed and direction of wind related words >
- affluence,
- afflux,
- affluxion,
- air current,
- bucking,
- challenge,
- concourse,
- confluence,
- conflux,
- contention,
- contradiction,
- contraposition,
- contravention,
- contraversion,
- counteraction,
- counterbalance,
- counterblast,
- countercurrent,
- counterforce,
- counterinfluence,
- counterpoise,
- counterpressure,
- counterweight,
- counterworking,
- course,
- crossing,
- current,
- current of air,
- defluxion,
- denial,
- downdraft,
- downflow,
- downpour,
- draft,
- drift,
- driftage,
- fall wind,
- flow,
- flow of air,
- flowing,
- fluency,
- flux,
- following wind,
- foul wind,
- gush,
- head wind,
- impugnation,
- impugnment,
- indraft,
- inflow,
- inhalation,
- inrush,
- inspiration,
- jetstream,
- katabatic wind,
- mill run,
- millrace,
- monsoon,
- movement of air,
- negation,
- onrush,
- onward course,
- opposing,
- opposition,
- opposure,
- oppugnation,
- outflow,
- race,
- rebutment,
- rebuttal,
- refusal,
- rejection,
- resistance,
- run,
- rush,
- set,
- spate,
- standing against,
- stream,
- stream of air,
- surge,
- tail wind,
- tide,
- traversal,
- trend,
- undercurrent,
- undertow,
- updraft,
- water flow,
- wind
- levanter
collapse
- an easterly wind in the western Mediterranean area related words >
- Euroclydon,
- Tehuantepec wind,
- Tehuantepecer,
- bise,
- defaulter,
- delinquent,
- east wind,
- easter,
- easterly,
- gregale,
- mistral,
- nonpayer,
- north wind,
- northeaster,
- norther,
- northwester,
- south wind,
- southeaster,
- souther,
- southerly buster,
- southwester,
- tax dodger,
- tax evader,
- tramontane,
- welsher,
- west wind,
- wester,
- westerly
- fall in
collapse
- to take one's place in a military formation or line; "Troops fall in!" related words >
- break down,
- cave,
- cave in,
- collapse,
- come together,
- crash,
- crystallize,
- deflate,
- draw up,
- fall,
- fall dead,
- fall down,
- fall flat,
- fall into line,
- fall into place,
- fall into rank,
- fall short,
- fall stillborn,
- fall through,
- fold,
- fold up,
- form,
- form a line,
- founder,
- gather around,
- get in formation,
- get in line,
- go to smash,
- implode,
- line up,
- place itself,
- puncture,
- queue,
- queue up,
- rally round,
- range itself,
- shape up,
- sway,
- take form,
- take its place,
- take order,
- take rank,
- take shape,
- topple,
- topple down,
- topple over,
- totter
- about to be,
- accidental,
- accompanying,
- ado,
- afloat,
- afoot,
- against the wind,
- already in sight,
- approaching,
- at hand,
- brewing,
- by the wind,
- circumstantial,
- close,
- close at hand,
- coming,
- current,
- doing,
- eventuating,
- forthcoming,
- future,
- gathering,
- going on,
- going to happen,
- happening,
- head to wind,
- immediate,
- imminent,
- impendent,
- impending,
- in danger imminent,
- in hand,
- in prospect,
- in reserve,
- in store,
- in the cards,
- in the offing,
- in view,
- incidental,
- instant,
- into the wind,
- looming,
- lowering,
- lurking,
- menacing,
- near,
- near at hand,
- nearing,
- occasional,
- occurring,
- on,
- on foot,
- on the horizon,
- on the wind,
- ongoing,
- overhanging,
- passing,
- preparing,
- prevailing,
- prevalent,
- resultant,
- taking place,
- that will be,
- threatening,
- to come,
- under way,
- up the wind,
- upcoming,
- waiting
- fall short
collapse
- fail to meet (expectations or standards) related words >
- be disappointing,
- be found wanting,
- be inferior,
- be insufficient,
- collapse,
- come short,
- crash,
- decline,
- fail,
- fail of,
- fall,
- fall away,
- fall dead,
- fall down,
- fall flat,
- fall in,
- fall shy,
- fall stillborn,
- fall through,
- fizzle,
- fizzle out,
- follow,
- go to smash,
- go wrong,
- have nothing on,
- kick the beam,
- lack,
- lag,
- lose ground,
- miss,
- miss out,
- miss the mark,
- not answer,
- not approach,
- not bear inspection,
- not come near,
- not compare,
- not hack it,
- not make it,
- not make out,
- not measure up,
- not pass muster,
- not qualify,
- not stretch,
- not suffice,
- peter out,
- play second fiddle,
- rank under,
- run short,
- serve,
- slump,
- stop short,
- subserve,
- turn sour,
- want
- blunder upon,
- bump into,
- chance upon,
- come across,
- come among,
- come down on,
- come on,
- come up against,
- come upon,
- confront,
- descend upon,
- discover serendipitously,
- drop on,
- encounter,
- fall across,
- fall among,
- fall foul of,
- fall in with,
- fall on,
- fall upon,
- happen upon,
- hit upon,
- light upon,
- meet,
- meet head-on,
- meet up with,
- meet with,
- pitch upon,
- run across,
- run into,
- run smack into,
- run up against,
- run upon,
- settle on,
- strike upon,
- stumble on,
- stumble upon,
- tumble on
- alight upon,
- arrive at,
- arrive upon,
- blunder upon,
- bump into,
- chance upon,
- come across,
- come among,
- come at,
- come down on,
- come on,
- come up against,
- come upon,
- confront,
- descend upon,
- discover serendipitously,
- drop on,
- encounter,
- fall across,
- fall among,
- fall foul of,
- fall in with,
- fall on,
- fall upon,
- get at,
- happen upon,
- hit upon,
- meet,
- meet head-on,
- meet up with,
- meet with,
- pitch upon,
- reach,
- run across,
- run into,
- run smack into,
- run up against,
- run upon,
- settle on,
- strike upon,
- stumble on,
- stumble upon,
- tumble on
- cock,
- defect,
- degenerate,
- desert,
- err,
- fall,
- fall again into,
- fall astern,
- fall away,
- fall back,
- fall behind,
- fall from grace,
- get behind,
- go astray,
- go backwards,
- go behind,
- go wrong,
- have a relapse,
- jerk back,
- lapse,
- lapse back,
- lose ground,
- pull back,
- recede,
- recidivate,
- recur to,
- regress,
- relapse,
- retrocede,
- retroflex,
- retrograde,
- retrogress,
- retrovert,
- return,
- return to,
- reverse,
- revert,
- revert to,
- sink back,
- slide back,
- slip,
- slip back,
- tergiversate,
- trip,
- turn,
- yield again to
- backslide,
- cock,
- fall,
- fall again into,
- fall astern,
- fall back,
- fall behind,
- fall from grace,
- get behind,
- go backwards,
- go behind,
- have a relapse,
- jerk back,
- lapse,
- lapse back,
- lose ground,
- pull back,
- recede,
- recur to,
- regress,
- relapse,
- retrocede,
- retroflex,
- retrograde,
- retrogress,
- retrovert,
- return,
- return to,
- reverse,
- revert,
- revert to,
- sink back,
- slide back,
- slip back,
- yield again to
- gale
collapse
- a strong wind moving 45-90 knots; force 7 to 10 on Beaufort scale related words >
- air,
- black squall,
- blast,
- blaze,
- blizzard,
- blow,
- breeze,
- burst,
- convulsion,
- cooling breeze,
- cyclone,
- equinoctial,
- eruption,
- explosion,
- fit,
- flare-up,
- gentle wind,
- gust,
- half a gale,
- heavy blow,
- howl,
- hurricane,
- ill wind,
- irruption,
- light air,
- light breeze,
- light wind,
- line squall,
- line storm,
- moderate breeze,
- ocean breeze,
- onshore breeze,
- outbreak,
- outburst,
- paroxysm,
- peal,
- roar,
- scream,
- sea breeze,
- seizure,
- shout,
- shriek,
- softblowing wind,
- spasm,
- squall,
- squall line,
- storm,
- storm wind,
- stormy winds,
- strong wind,
- tempest,
- tempestuous wind,
- thick squall,
- thundersquall,
- tornado,
- tropical cyclone,
- turbulence,
- typhoon,
- ugly wind,
- upheaval,
- violent blow,
- whirlwind,
- white squall,
- whole gale,
- williwaw,
- wind-shift line,
- windstorm,
- zephyr
- alight upon,
- blunder upon,
- bump into,
- chance upon,
- come across,
- come among,
- come on,
- come up against,
- come upon,
- confront,
- discover serendipitously,
- encounter,
- fall across,
- fall among,
- fall foul of,
- fall in with,
- fall upon,
- happen upon,
- hit upon,
- light upon,
- meet,
- meet head-on,
- meet up with,
- meet with,
- pitch upon,
- run into,
- run smack into,
- run up against,
- run upon,
- stumble on,
- stumble upon,
- tumble on
- fall from grace
collapse
- revert back to bad behavior after a period of good behavior; "The children fell from grace when they asked for several helpings of dessert" related words >
- apostasy,
- atheism,
- backslide,
- backsliding,
- desertion,
- fall,
- fall again into,
- fall back,
- fall of Adam,
- fall of man,
- have a relapse,
- impiety,
- impiousness,
- irreligion,
- irreverence,
- lapse,
- lapse back,
- lapse from grace,
- recidivate,
- recidivation,
- recidivism,
- recreancy,
- recur to,
- regress,
- relapse,
- return to,
- revert,
- revert to,
- sin of Adam,
- sink back,
- slide back,
- slip back,
- undutifulness,
- yield again to
- weathercock
collapse
- weathervane with a vane in the form of a rooster related words >
- April showers,
- Proteus,
- Vicar of Bray,
- anemograph,
- anemometer,
- anemometrograph,
- anemoscope,
- barometer,
- chameleon,
- cloud shapes,
- cock,
- feeler,
- formalist,
- kaleidoscope,
- mercury,
- moon,
- pilot balloon,
- probe,
- quicksilver,
- random sample,
- rolling stone,
- sample,
- shifting sands,
- sound,
- sounder,
- straw vote,
- temporizer,
- the weather,
- timepleaser,
- timeserver,
- trial balloon,
- trimmer,
- vane,
- water,
- weather vane,
- wheel of fortune,
- whirligig,
- wind cone,
- wind indicator,
- wind sock,
- wind vane,
- wind-speed indicator
- windstorm
collapse
- a storm consisting of violent winds related words >
- black squall,
- blizzard,
- blow,
- cyclone,
- dirty weather,
- equinoctial,
- foul weather,
- gale,
- half a gale,
- heavy blow,
- hurricane,
- ill wind,
- line squall,
- line storm,
- rainstorm,
- rough weather,
- snowstorm,
- squall,
- squall line,
- storm,
- storm wind,
- stormy weather,
- stormy winds,
- strong wind,
- tempest,
- tempestuous rage,
- tempestuous wind,
- thick squall,
- thundersquall,
- thunderstorm,
- tornado,
- tropical cyclone,
- typhoon,
- ugly wind,
- violent blow,
- white squall,
- whole gale,
- williwaw,
- wind-shift line
- typhoon
collapse
- a tropical cyclone occurring in the western Pacific or Indian oceans related words >
- baguio,
- black squall,
- blizzard,
- blow,
- cyclone,
- dirty weather,
- dust devil,
- equinoctial,
- foul weather,
- gale,
- half a gale,
- heavy blow,
- hurricane,
- ill wind,
- line squall,
- line storm,
- rainspout,
- rainstorm,
- rotary storm,
- rough weather,
- sand column,
- sandspout,
- snowstorm,
- squall,
- squall line,
- storm,
- storm wind,
- stormy weather,
- stormy winds,
- strong wind,
- tempest,
- tempestuous rage,
- tempestuous wind,
- thick squall,
- thundersquall,
- thunderstorm,
- tornado,
- tropical,
- tropical cyclone,
- twister,
- ugly wind,
- violent blow,
- waterspout,
- whirlblast,
- whirlwind,
- white squall,
- whole gale,
- williwaw,
- wind eddy,
- wind-shift line,
- windstorm
- abort,
- backslide,
- be in error,
- be mistaken,
- be wrong,
- degenerate,
- depart,
- deviate,
- digress,
- divagate,
- drift,
- err,
- excurse,
- fall,
- fall into error,
- get sidetracked,
- go adrift,
- go amiss,
- go awry,
- go wrong,
- lapse,
- maunder,
- meander,
- misbelieve,
- miscalculate,
- miscarry,
- misfire,
- miss,
- miss out,
- miss stays,
- miss the boat,
- miss the mark,
- pererrate,
- ramble,
- rove,
- serve Mammon,
- slip,
- slip up,
- snake,
- straggle,
- stray,
- stumble,
- trip,
- turn aside,
- twist,
- twist and turn,
- wander,
- wind
- backslide,
- cock,
- degenerate,
- deteriorate,
- disimprove,
- fall,
- fall again into,
- fall astern,
- fall back,
- fall behind,
- fall from grace,
- get behind,
- get worse,
- go backwards,
- go behind,
- grow worse,
- have a relapse,
- jerk back,
- lapse,
- lapse back,
- let down,
- lose ground,
- pull back,
- recede,
- recidivate,
- recur to,
- regress,
- relapse,
- retrocede,
- retroflex,
- retrograde,
- retrogress,
- retrovert,
- return,
- return to,
- reverse,
- revert,
- revert to,
- sicken,
- sink back,
- slacken,
- slide back,
- worsen,
- yield again to
- alight upon,
- blunder upon,
- bring to bay,
- bump into,
- chance upon,
- close with,
- come across,
- come among,
- come on,
- come upon,
- confront,
- discover serendipitously,
- encounter,
- fall across,
- fall among,
- fall foul of,
- fall in with,
- fall upon,
- fight hand-to-hand,
- happen upon,
- hit upon,
- light upon,
- meet,
- meet head-on,
- meet up with,
- meet with,
- pitch upon,
- run across,
- run into,
- run smack into,
- run up against,
- run upon,
- stumble on,
- stumble upon,
- tumble on
- alight upon,
- appear unexpectedly,
- arrive at,
- arrive upon,
- be unexpected,
- blunder upon,
- bob up,
- bump into,
- chance upon,
- come across,
- come among,
- come at,
- come on,
- come unawares,
- come up against,
- confront,
- creep up on,
- discover serendipitously,
- encounter,
- fall across,
- fall among,
- fall foul of,
- fall in with,
- fall upon,
- flash upon one,
- get at,
- happen upon,
- hit upon,
- light upon,
- meet,
- meet head-on,
- meet up with,
- meet with,
- pitch upon,
- pop up,
- pounce upon,
- reach,
- run across,
- run into,
- run smack into,
- run up against,
- run upon,
- strike upon,
- stumble on,
- stumble upon,
- tumble on,
- turn up
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