Definitions
verb
be a signal for or a symptom of
“The economic indicators signal that the euro is undervalued”
noun
any nonverbal action or gesture that encodes a message
“signals from the boat suddenly stopped”
verb
communicate silently and non-verbally by signals or signs
“The diner signaled the waiters to bring the menu”
noun
an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
noun
any incitement to action
“he awaited the signal to start”
adjective
notably out of the ordinary
“the year saw one signal triumph for the Labour party”
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