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1. Dictionary

   Sig·nal

   /ˈsiɡn(ə)l/

   

   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 state of affairs: "the markets are waiting for a clear signal about the direction of policy" Similar indicationsignsymptomhintpointersuggestionintimationcluemanifestationdemonstrationtokentestimonyevidenceattestationproof
   • ▪ an event or statement that provides the impulse or occasion for something specified to happen: "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 railroad, typically a colored light or a semaphore, giving indications to train engineers 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. transmit 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 rather than explicit orders: "she signaled 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 signaled right"
   • ▪ indicate the existence or occurrence of (something) by actions or sounds: "they 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. signaler noun

   Scrabble Points: 7

   • S

     1

   • I

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   • G

     2

   • N

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   • A

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   • L

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2. 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.

3. People also ask

   What is a signal in communication?

   • A signal is a gesture or message that people use to communicate with each other. The wave you give a good friend to call her over from across the room and the impulse that transmits your voice through the telephone to your mother are both signals. In the course of a single day, you probably send and receive thousands of different signals.

   Signal - Definition, Meaning & Synonyms | Vocabulary.com

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   What are the different types of signals?

   • Other forms: signals; signaled; signalled; signalling A signal is a gesture or message that people use to communicate with each other. The wave you give a good friend to call her over from across the room and the impulse that transmits your voice through the telephone to your mother are both signals.

   Signal - Definition, Meaning & Synonyms | Vocabulary.com

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   What does a signal mean?

   • A signal is a gesture, sound, or action which is intended to give a particular message to the person who sees or hears it. They fired three distress signals. As soon as it was dark, Mrs Evans gave the signal. You mustn't fire without my signal. If you signal to someone, you make a gesture or sound in order to send them a particular message.

   SIGNAL definition and meaning | Collins English 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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4. 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.

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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.vocabulary.com › dictionary › signalSignal - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › signal

   signal: 1 n any action or gesture that encodes a message “ signals from the boat suddenly stopped” Synonyms: sign , signaling Types: show 89 types... hide 89 types... recording a signal that encodes something (e.g., picture or sound) that has been recorded number , phone number , telephone number the number is used in calling a particular ...

8. 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.

9. www.britannica.com › dictionary › signalSignal Definition & Meaning | Britannica Dictionary

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   Learn the various meanings and uses of the word signal, from a noun to a verb to an adjective. Find examples of signal as a sign, a message, a device, or a quality.

10. 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.