4. (verb)signal notably out of the ordinary "the year saw one signal triumph for the Labour party"
5. (verb)sign, signal, signalize, signalise 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"
6. (verb)bespeak, betoken, indicate, point, signal 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"
1. (noun)signal an action, sound, etc. that sends people a message The signal to advance was a single gunshot.; He gave them a signal, and they began to sing.
2. signal an indication of what is likely to happen or be done a signal of his intention to resign
3. signal a piece of equipment for controlling cars, trains, etc. a traffic signal
5. (verb)signal to make a signal that sends people a message He signaled to the others to help.; They were signaling for us to leave.; She was trying to signal that she couldn't breathe.
6. signal to indicate what is likely to happen or be done Rising prices signaled the end of the housing troubles.
Definition of 'Signal'
Webster Dictionary
1. (adj)Signal noticeable; distinguished from what is ordinary; eminent; remarkable; memorable; as, a signal exploit; a signal service; a signal act of benevolence
2. (adj)Signal of or pertaining to signals, or the use of signals in conveying information; as, a signalflag or officer
3. (noun)Signal a sign made for the purpose of givingnotice to a person of some occurence, command, or danger; also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action
4. (noun)Signal a token; an indication; a foreshadowing; a sign
5. (verb)Signal to communicate by signals; as, to signal orders
1. Signal 1. As applied to electronics, any transmitted electrical impulse. 2. Operationally, a type of message, the text of which consists of one or more letters, words, characters, signal flags, visual displays, or special sounds with prearranged meaning, and which is conveyed or transmitted by visual, acoustical, or electrical means.
Sense: a sign (eg a movement of the hand, a light, a sound), especially one arranged beforehand, giving a command, warning or other message He gave the signal to advance.