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signal - definition and synonyms


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verb signal pronunciation in American English /ˈsɪɡnəl/
Word Forms
present tense
present participlesignaling or signalling
past tensesignaled or signalled
past participlesignaled or signalled
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  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.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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a stupid person

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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