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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

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

   www.merriam-webster.com › dictionary › signal

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   1. : sign, indication. 2. a. : an act, event, or watchword that has been agreed on as the occasion of concerted action. b. : something that incites to action. 3. : something (such as a sound, gesture, or object) that conveys notice or warning. 4. a. : an object used to transmit or convey information beyond the range of human voice. b.

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

   dictionary.cambridge.org › dictionary › english

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   SIGNAL definition: 1. an action, movement, or sound that gives information, a message, a warning, or an order: 2. a…. Learn more.

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

   www.vocabulary.com › dictionary › signal

   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.

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

   www.collinsdictionary.com › dictionary › english

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   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. Synonyms: cue, sign, nod, prompting More Synonyms of signal. 2.verb.

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

   www.dictionary.com › browse › signal

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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.oxfordlearnersdictionaries.com › definition › englishsignal noun - Definition, pictures, pronunciation and usage notes...

   www.oxfordlearnersdictionaries.com › definition › english

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   noun. /ˈsɪɡnəl/ a movement or sound that you make to give somebody information, instructions, a warning, etc. synonym sign. a danger/warning/distress signal. at a signal At an agreed signal they left the room. signal to somebody She made an impatient signal to him, but he ignored her.

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

   www.britannica.com › dictionary › signal

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   SIGNAL meaning: 1 : an event or act which shows that something exists or that gives information about something sign often + of; 2 : something (such as a sound, a movement of part of the body, or an object) that gives information about something or that tells someone to do something