signal flag

/ˌsɪgnəl flæg/
IPA guide

Other forms: signal flags

Definitions of signal flag
  1. noun
    a rectangular piece of fabric used as a signalling device
    synonyms: flag
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    types:
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    pennant
    a flag longer than it is wide (and often tapering)
    code flag, nautical signal flag
    one of an international code of flag signals used between ships
    red flag
    a flag that serves as a warning signal
    blue peter
    a blue flag with a white square in the center indicates that the vessel is ready to sail
    type of:
    visual signal
    a signal that involves visual communication
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