Definition of signal

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Signal (n.) A sign made for the purpose of giving notice to a person of some occurence, command, or danger; also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action..

Lern More About Signal

Hip :: Hip (interj.) Used to excite attention or as a signal; as, hip, hip, hurra!.
Warder :: Warder (n.) A truncheon or staff carried by a king or a commander in chief, and used in signaling his will..
Magnesium :: Magnesium (n.) A light silver-white metallic element, malleable and ductile, quite permanent in dry air but tarnishing in moist air. It burns, forming (the oxide) magnesia, with the production of a blinding light (the so-called magnesium light) which is used in signaling, in pyrotechny, or in photography where a strong actinic illuminant is required. Its compounds occur abundantly, as in dolomite, talc, meerschaum, etc. Symbol Mg. Atomic weight, 24.4. Specific gravity, 1.75..
Retreat :: Retreat (n.) A signal given in the army or navy, by the beat of a drum or the sounding of trumpet or bugle, at sunset (when the roll is called), or for retiring from action..
Code :: Code (n.) Any system of rules or regulations relating to one subject; as, the medical code, a system of rules for the regulation of the professional conduct of physicians; the naval code, a system of rules for making communications at sea means of signals..
Beacon :: Beacon (n.) A signal or conspicuous mark erected on an eminence near the shore, or moored in shoal water, as a guide to mariners..
Precautionary :: Precautionary (a.) Of or pertaining to precaution, or precautions; as, precautionary signals..
Balefire :: Balefire (n.) A signal fire; an alarm fire.
Chamade :: Chamade (n.) A signal made for a parley by beat of a drum.
Headshake :: Headshake (n.) A significant shake of the head, commonly as a signal of denial..
Chronopher :: Chronopher (n.) An instrument signaling the correct time to distant points by electricity.
Beat :: Beat (v. t.) To give the signal for, by beat of drum; to sound by beat of drum; as, to beat an alarm, a charge, a parley, a retreat; to beat the general, the reveille, the tattoo. See Alarm, Charge, Parley, etc..
Jalons :: "Jalons (n. pl.) Long poles, topped with wisps of straw, used as landmarks and signals..
Waft :: Waft (n.) A signal made by waving something, as a flag, in the air..
Target :: Target (n.) A conspicuous disk attached to a switch lever to show its position, or for use as a signal..
Signalize :: Signalize (a.) To communicate with by means of a signal; as, a ship signalizes its consort..
Wave :: Wave (v. t.) To call attention to, or give a direction or command to, by a waving motion, as of the hand; to signify by waving; to beckon; to signal; to indicate..
Nod :: Nod (n.) A quick or slight downward or forward motion of the head, in assent, in familiar salutation, in drowsiness, or in giving a signal, or a command..
Signal :: Signal (a.) Of or pertaining to signals, or the use of signals in conveying information; as, a signal flag or officer..
Whistle :: Whistle (v. t.) To send, signal, or call by a whistle..
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