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signal  - definition and synonyms

 
 
 
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noun [countable] signal pronunciation in American English /ˈsɪɡnəl/
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singularsignal
pluralsignals
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  1. 1
    a movement or sound made by someone that has a special meaning to another person
    signal to:

    He gave a signal to his driver to carry on.

    at a signal:

    At the prearranged signal, we all jumped up and shoutedSurprise!”

    do something as a signal (of something):

    They waved a flag as a signal of distress.

    mixed/conflicting signals (=signals that have different meanings):

    She knew she was sending him mixed signals.

    give (someone) a signal:

    We waited for them to give us the signal to move.

  2. 2
    a fact, event, or action that shows what someone intends to do or shows what is likely to happen
    signal of:

    They had ignored the strong signals of an approaching economic crisis .

    give/send a signal:

    In terms of their personal relationships, teachers have to be very careful not to send students the wrong signals.

    signal for/to:

    The election was a signal for the party to rethink its strategies.

    read the signals (=understand their meaning correctly):

    When she told him she was leaving, Bill wasn’t surprised – he had read the signals.

  3. 3
    pictures, sound, or other information sent by one piece of electronic equipment and received by another one

    I’ve called several times, but I keep getting a busy signal.

    carry a signal:

    The copper wire carries the electrical signals.

    See also busy signal
  4. 4
    a piece of equipment with colored lights on it that tells the driver of a vehicle to stop, go, or slow down

    The signal was green.

bit rot

when electronic information is lost because the software or devices needed to read it are no longer available

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