Exact Match:
- strengthen
- gain strength; "His body strengthened"
- make strong or stronger; "This exercise will strengthen your upper body"; "strengthen the relations between the two countries"
Synonyms:
- accelerate,
- accrue,
- accumulate,
- add to,
- advance,
- affirm,
- aggravate,
- animate,
- anneal,
- appreciate,
- attest,
- augment,
- authenticate,
- back,
- back up,
- balloon,
- be tough,
- bear out,
- beef up,
- bloat,
- blow up,
- bolster,
- boom,
- boost,
- brace,
- brace up,
- breed,
- broaden,
- buttress,
- case harden,
- certify,
- cheer,
- chirk up,
- circumstantiate,
- complicate,
- concentrate,
- condense,
- confirm,
- consolidate,
- corroborate,
- crescendo,
- deepen,
- develop,
- document,
- double,
- embolden,
- encourage,
- endure,
- energize,
- enhance,
- exacerbate,
- exaggerate,
- fortify,
- gain,
- gain strength,
- gelt,
- get ahead,
- gird,
- go up,
- grow,
- hang tough,
- harden,
- hearten,
- heat up,
- heighten,
- hop up,
- hot up,
- increase,
- inspirit,
- intensify,
- invigorate,
- jazz up,
- key up,
- magnify,
- make complex,
- mount,
- multiply,
- nerve,
- nourish,
- nutrify,
- prepare,
- probate,
- proliferate,
- prop,
- prove,
- ramify,
- ratify,
- ready,
- recruit,
- redouble,
- refresh,
- reinforce,
- reinvigorate,
- rejuvenate,
- renew,
- restrengthen,
- rigidify,
- rise,
- run up,
- screw up,
- sharpen,
- shoot up,
- shore up,
- sinew,
- snowball,
- soup up,
- spread,
- steel,
- step up,
- stiffen,
- substantiate,
- supplement,
- support,
- sustain,
- swell,
- temper,
- tense,
- tighten,
- tone up,
- toughen,
- trice up,
- triple,
- undergird,
- uphold,
- validate,
- verify,
- vitalize,
- warrant,
- wax,
- whet,
- widen