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   signal

   /ˈsɪɡnl/

   noun

   • 1. a gesture, action, or sound that is used to convey information or instructions, typically by prearrangement between the parties concerned: "the firing of the gun was the signal for a chain of beacons to be lit" Similar gesturesignwavegesticulationcuepromptindicatorindicationcommunicationmessagealertwarningtip-offactionmovementmotionbody languagekinesics
   • ▪ an indication of a situation: "the markets are waiting for a clear signal about the direction of policy" Similar indicationsignsymptomhintpointersuggestionintimationcluemanifestationdemonstrationtokentestimonyevidenceattestationproof
   • ▪ an event or statement that provides the impulse for an occurrence: "the champion's announcement that he was retiring was the signal for scores of journalists to gather at his last match" Similar cuepromptoccasiongreen lightincentiveimpetusimpulsestimulusinformal:go-ahead
   • ▪ a prearranged convention of bidding or play intended to convey information to one's partner.
   • 2. an electrical impulse or radio wave transmitted or received: "equipment for receiving TV signals"
   • 3. an apparatus on a railway, typically a coloured light or a semaphore, giving indications to train drivers of whether or not the line is clear: "the driver of the mail train overran a signal at danger and ran into the rear of an express"

   verb

   • 1. convey information or instructions by means of a gesture, action, or sound: "hold your fire until I signal"
   • ▪ instruct (someone) to do something by means of gestures or signs: "she signalled Charlotte to be silent" Similar gesturesigngive a sign toindicatedirectmotiongesticulatewavebeckonnod
   • ▪ (of a cyclist, motorist, or vehicle) indicate an intention to turn in a specified direction using an extended arm or flashing indicator: "Stone signalled right"
   • ▪ indicate the existence or occurrence of (something) by actions or sounds: "the Community could signal displeasure by refusing to cooperate" Similar indicateshowexpresscommunicateannounceproclaimdeclarepronounce

   Word Origin late Middle English: from Old French, from medieval Latin signale, neuter of late Latin signalis, from Latin signum ‘mark, token’ (see sign). The verb dates from the early 19th century.

   Derivatives

   • 1. signaller noun

   Scrabble Points: 7

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   • N

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2. People also ask

   What does signal mean?

   • signal 1. As applied to electronics, any transmitted electrical impulse. 2. Operationally, a type of message, the text of which consists of one or more letters, words, characters, signal flags, visual displays, or special sounds with prearranged meaning, and which is conveyed or transmitted by visual, acoustical, or electrical means.

   Signal - definition of signal by The Free Dictionary

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   What does signalled mean?

   • v.sig·naled, sig·nal·ing, sig·nalsor sig·nalledor sig·nal·ling v.tr. 1. To make a signal to: I signaled the driver to proceed. 2. To relate or make known by signals: They have signaled their willingness to negotiate. 3. To cause an effect in (a cell) by the activation of a receptor, as by a neurotransmitter or hormone. v.intr.

   Signal - definition of signal by The Free Dictionary

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   What does sign mean?

   • Get a quick, free translation! SIGNAL definition: 1. a movement, light, or sound that gives information, or tells people what to do: 2. a series of…. Learn more.

   SIGNAL | meaning - Cambridge Learner's Dictionary

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   How does a signal represent information?

   • The amplitude or frequency of voltage, current, electric field strength, light, and sound can be varied as signals representing information. They would transmit sound signals through the SOFAR Channel and measure the time that it took for the waves to arrive at receivers located 10,000 kilometers away.

   SIGNAL Definition & Meaning | Dictionary.com

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3. dictionary.cambridge.org › dictionary › englishSIGNAL | English meaning - Cambridge Dictionary

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   Learn the meaning of signal as a noun, verb, and adjective in English. Find out how to use signal in different contexts, such as actions, waves, equipment, and expressions.

4. www.merriam-webster.com › dictionary › signalSignal Definition & Meaning - Merriam-Webster

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   Learn the various meanings and uses of the word signal as a noun, verb, and adjective. Find synonyms, examples, etymology, and related phrases of signal.

5. Videos

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6. www.dictionary.com › browse › signalSIGNAL Definition & Meaning | Dictionary.com

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   Signal definition: anything that serves to indicate, warn, direct, command, or the like, such as a light, a gesture, an act, etc.. See examples of SIGNAL used in a sentence.

7. www.collinsdictionary.com › dictionary › englishSIGNAL definition and meaning | Collins English Dictionary

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   Learn the various meanings and uses of the word signal, from a gesture or sound that conveys a message to a device that transmits information. Find synonyms, pronunciation, grammar, and examples of signal in different contexts.

8. www.thefreedictionary.com › signalSignal - definition of signal by The Free Dictionary

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   A signal is a means of communication, a physical entity that activates a receptor, or an electrical quantity that conveys information. Learn more about the different types and uses of signals from various sources and dictionaries.

9. www.oxfordlearnersdictionaries.com › definitionsignal noun - Definition, pictures, pronunciation and usage ...

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   Learn the meaning, pronunciation and usage of the word signal as a noun in English. Find out the different types and functions of signals, such as movements, sounds, lights, waves and events.

10. dictionary.cambridge.org › learner-english › signalSIGNAL | meaning - Cambridge Learner's Dictionary

    dictionary.cambridge.org › learner-english › signal

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    Learn the meaning of signal as a noun and a verb in English, with examples of different types of signals. Find out how to use signal in sentences and how to translate it in other languages.