Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “signal”

signal

noun [C] (ACTION)    /ˈsɪɡ.nəl/
B2 an action, movement, or sound that gives information, a message, a warning, or an order: When she gave (them) the signal, they all cheered. [+ that] The firework was a signal that the festival had started. [+ to infinitive] The police officer gave us a signal to stop. The signal for a race to start is often the firing of a gun.Signs, signals and symbolsSpecific signs and symbols US for indicatorThe exterior of vehicles
(Definition of signal noun (ACTION) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of signal

Definitions of “signal” in other dictionaries

Word of the Day

limber up

to do gentle exercises to stretch the muscles in order to prepare the body for more active physical exercise

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More