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siren collapse: eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills; an acoustic device producing a loud often wailing sound as a signal or warning; a warning signal that is a loud wailing sound; a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived; "Odysseus ordered his crew to plug their ears so they would not hear the Siren's fatal song"

sign collapse: a perceptible indication of something not immediately apparent (as a visible clue that something has happened); "he showed signs of strain"; "they welcomed the signs of spring"; a public display of a (usually written) message; "he posted signs in all the shop windows"; a character indicating a relation between quantities; "don't forget the minus sign"; a gesture that is part of a sign language; a fundamental linguistic unit linking a signifier to that which is signified; "The bond between the signifier and the signified is arbitrary"--de Saussure; (medicine) any objective evidence of the presence of a disorder or disease; "there were no signs of asphyxiation"; be engaged by a written agreement; "He signed to play the casino on Dec. 18"; "The soprano signed to sing the new opera"; communicate in sign language; "I don't know how to sign, so I could not communicate with my deaf cousin"; mark with one's signature; write one's name (on); "She signed the letter and sent it off"; "Please sign here"; communicate silently and non-verbally by signals or signs; "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu"; place signs, as along a road; "sign an intersection"; "This road has been signed"; engage by written agreement; "They signed two new pitchers for the next season"; approve and express assent, responsibility, or obligation; "All parties ratified the peace treaty"; "Have you signed your contract yet?"

black hole collapse: a region of space resulting from the collapse of a star; extremely high gravitational field

wind sock collapse

radio control collapse

send collapse: transfer; "The spy sent the classified information off to Russia"; to cause or order to be taken, directed, or transmitted to another place; "He had sent the dispatches downtown to the proper people and had slept"; cause to go somewhere; "The explosion sent the car flying in the air"; "She sent her children to camp"; "He directed all his energies into his dissertation"

telemetry collapse: automatic transmission and measurement of data from remote sources by wire or radio or other means

sparks collapse

spectroscopy collapse: the use of spectroscopes to analyze spectra

tracking collapse

device collapse: any clever maneuver; "he would stoop to any device to win a point"; "it was a great sales gimmick"; "a cheap promotions gimmick for greedy businessmen"; an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"; an emblematic design (especially in heraldry); "he was recognized by the device on his shield"; any ornamental pattern or design (as in embroidery); something in an artistic work designed to achieve a particular effect

dumb show collapse

trace collapse: either of two lines that connect a horse's harness to a wagon or other vehicle or to a whiffletree; an indication that something has been present; "there wasn't a trace of evidence for the claim"; "a tincture of condescension"; a visible mark (as a footprint) left by the passage of person or animal or vehicle; a just detectable amount; "he speaks French with a trace of an accent"; follow, discover, or ascertain the course of development of something; "We must follow closely the economic development is Cuba" ; "trace the student's progress"; make a mark or lines on a surface; "draw a line"; "trace the outline of a figure in the sand"; copy by following the lines of the original drawing on a transparent sheet placed upon it; make a tracing of; "trace a design"; "trace a pattern"; make one's course or travel along a path; travel or pass over, around, or along; "The children traced along the edge of the dark forest"; "The women traced the pasture"; to go back over again; "we retraced the route we took last summer"; "trace your path"; discover traces of; "She traced the circumstances of her birth"

shrug collapse: a gesture involving the shoulders; raise one's shoulders to indicate indifference or resignation

magnitude collapse: the property of relative size or extent (whether large or small); "they tried to predict the magnitude of the explosion"; "about the magnitude of a small pea"; relative importance; "a problem of the first magnitude"

flash collapse: a lamp for providing momentary light to take a photograph; a bright patch of color used for decoration or identification; "red flashes adorned the airplane"; "a flash sewn on his sleeve indicated the unit he belonged to"; a momentary brightness; a sudden brilliant understanding; "he had a flash of intuition"; a short vivid experience; "a flash of emotion swept over him"; "the flashings of pain were a warning"; a sudden intense burst of radiant energy; appear briefly; "The headlines flashed on the screen"; emit a brief burst of light; "A shooting star flashed and was gone"; make known or cause to appear with great speed; "The latest intelligence is flashed to all command posts"; protect by covering with a thin sheet of metal; "flash the roof"; expose or show briefly; "he flashed a $100 bill"; gleam or glow intermittently; "The lights were flashing"

leave word collapse

return collapse: a coming to or returning home; "on his return from Australia we gave him a welcoming party"; the act of going back to a prior location; "they set out on their return to the base camp"; (American football) the act of running back the ball after a kickoff or punt or interception or fumble; a tennis stroke that sends the ball back to the other player; "he won the point on a cross-court return"; a reciprocal group action; "in return we gave them as good as we got"; the occurrence of a change in direction back in the opposite direction; the income or profit arising from such transactions as the sale of land or other property; "the average return was about 5%"; submit (a report, etc.) to someone in authority; "submit a bill to a legislative body"; make a return; "return a kickback"; come back to place where one has been before, or return to a previous activity; return to a previous position; in mathematics; "The point returned to the interior of the figure"; bring back to the point of departure; return in kind; "return a compliment"; "return her love"

danger sign collapse

air corps collapse: formerly the airborne division of the United States Army

commercial collapse: a commercially sponsored ad on radio or television; connected with or engaged in or sponsored by or used in commerce or commercial enterprises; "commercial trucker"; "commercial TV"; "commercial diamonds"; of the kind or quality used in commerce; average or inferior; "commercial grade of beef"; "commercial oxalic acid"; of or relating to commercialism; "a commercial attache"; "commercial paper"; "commercial law"

generator collapse: engine that converts mechanical energy into electrical energy by electromagnetic induction; an apparatus that produces a vapor or gas; an electronic device for producing a signal voltage; someone who originates or causes or initiates something; "he was the generator of several complaints"

telltale sign collapse

glimmer collapse

salute collapse: an act of greeting with friendly words and gestures like bowing or lifting the hat; a formal military gesture of respect; an act of honor or courteous recognition; "a musical salute to the composer on his birthday"; express commendation of; "I salute your courage!"; greet in a friendly way; "I meet this men every day on my way to work and he salutes me"; recognize with a gesture prescribed by a military regulation; assume a prescribed position; "When the officers show up, the soldiers have to salute"; honor with a military ceremony, as when honoring dead soldiers; become noticeable; "a terrible stench saluted our nostrils"

prognosticate collapse

pinpointing collapse

occurrence collapse: an instance of something occurring; "a disease of frequent occurrence"; "the occurrence (or presence) of life on other planets"

telecommunication collapse: (often plural) the branch of electrical engineering concerned with the technology of electronic communication at a distance; (often plural) systems used in transmitting messages over a distance electronically

informant collapse: a person who supplies information

sure sign collapse

commonness collapse: ordinariness as a consequence of being frequent and commonplace; the state of being that is commonly observed

make known collapse

long distance collapse: a telephone call made outside the local calling area; "I talked to her by long distance"

triangulation collapse: a method of surveying; the area is divided into triangles and the length of one side and its angles with the other two are measured, then the lengths of the other sides can be calculated; a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points a known distance apart; useful in navigation

newsmonger collapse

appalling collapse: an experience that appalls; "is it better to view the appalling or merely hear of it?"; causing consternation; "appalling conditions"

adviser collapse: an expert who gives advice; "an adviser helped students select their courses"; "the United States sent military advisors to Guatemala"

conflagration collapse: a very intense and uncontrolled fire

Union Jack collapse: national flag of the United Kingdom

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