signal Meaning in Cambridge American English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "signal" - American English Dictionary

See all translations

signalnoun [C]

 us   /ˈsɪɡ·nəl/

signal noun [C] (ACTION)

an action, movement, or sound that gives information, a message, a warning, or an order: I tried to call but kept getting a busy signal. When the lieutenant gave the signal, five police officers charged into the apartment. In retrospect, looking at how she was acting, we should have been able to recognize the danger signals. A signal is also a device, often with lights, that shows people or vehicles whether to stop, go, or move carefully.

signal noun [C] (WAVE)

a series of energy waves that carry a sound, picture, or other information: a low-frequency radio signal

signaladjective

 us   /ˈsɪɡ·nəl/ fml

signal adjective (IMPORTANT)

unusual and important: You performed a signal service to our people, and we wish to express our gratitude.

signalverb [I/T]

 us   /ˈsɪɡ·nəl/

signal verb [I/T] (MAKE MOVEMENT)

to make a movement, sound, etc. that gives information or tells people what to do: [I] When you learn to drive, you are told that you have to signal before you turn right or left. [T] The police officer signaled us to stop.
(Definition of signal from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of signal?
Add Cambridge dictionaries to your browser to your website

Definitions of “signal” in other dictionaries

Word of the Day
stretch the truth

to say something that is not completely honest in order to make someone or something seem better than it really is

Word of the Day

July 4th, Bastille Day, and the language of revolution.
July 4th, Bastille Day, and the language of revolution.
by Liz Walter,
July 01, 2015
With America’s Independence Day on the 4th and France’s Bastille Day on the 14th, July certainly has a revolutionary theme, so this blog looks at words and phrases we use to talk about the dramatic and nation-changing events that these days celebrate. In particular, it focuses on one of the most important

Read More 

generation pause noun
generation pause noun
July 06, 2015
informal young adults who are not able to do things previously typical for their age group such as buy a home or start a family because of lack of money Meanwhile, a new study released last week revealed a quarter of Brits believe they’ll never own a property, leading them to be

Read More