signal, signaling, sign (noun)

any nonverbal action or gesture that encodes a message

"signals from the boat suddenly stopped"

signal (noun)

any incitement to action

"he awaited the signal to start"; "the victory was a signal for wild celebration"

signal (adj)

an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes

signal (verb)

notably out of the ordinary

"the year saw one signal triumph for the Labour party"

sign, signal, signalize, signalise (verb)

communicate silently and non-verbally by signals or signs

"He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu"

bespeak, betoken, indicate, point, signal (verb)

be a signal for or a symptom of

"These symptoms indicate a serious illness"; "Her behavior points to a severe neurosis"; "The economic indicators signal that the euro is undervalued"

signal (Noun)

An indication given to another person.

signal (Noun)

An on-off light, semaphore, or other device used to give an indication to another person.

signal (Noun)

(of a radio, TV, telephone, internet, etc) An electrical or electromagnetic action, normally a voltage that is a function of time that conveys the information of the radio or TV program or of communication with another party.

signal (Noun)

Useful information.

signal (Noun)

A simple interprocess communication used to notify a process or thread of an occurrence.

signal (Verb)

To indicate.

signal (Adjective)

Standing above others in rank, importance, or achievement.

Signal

Signal (stylized in all caps) is a song recorded by South Korean girl group Twice. The song was released on May 15, 2017 by JYP Entertainment and distributed by KT Music, as the lead single from their fourth extended play of the same name. The Japanese version of "Signal", along with its accompanying short version of the music video, was released on June 14, 2017 as a promotional single for their first Japanese compilation album, #Twice. The song received its first awards—Song of the Year (grand prize) and Best Dance Performance for a female group at the 2017 Mnet Asian Music Awards.