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signal

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verb American English pronunciation: signal /ˈsɪɡnəl/ 
Word Forms
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present tense
I/you/we/theysignal
he/she/itsignals
present participlesignaling or signalling
past tensesignaled or signalled
past participlesignaled or signalled
  1. 1
    [intransitive/transitive] to make a movement or sound that has a special meaning to another person

    The cyclist signaled and turned right.

    signal that:

    He turned on his flashlight to signal that he was ready.

    signal (to) someone to do something:

    The driver signaled her to cross the road.

    signal to someone:

    He signaled frantically across the room to his wife.

  2. 2
    [transitive] to show that something is happening or will happen

    This agreement signaled the end of the war.

    signal that:

    The new tax signaled that Congress was serious about the environment.

  3. 3
    [transitive] if you signal a quality or your feelings, you show what you intend to do about something

    The kidnappers have signaled their willingness to negotiate.

    Both parties have signaled their determination to win.

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