Definition of SIGNAL

signal

Meanings

Plural: signals

Noun

  • any nonverbal action or gesture that encodes a message
    • "signals from the boat suddenly stopped"
  • any incitement to action
    • "he awaited the signal to start"
    • "the victory was a signal for wild celebration"
  • an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
  • A sequence of states representing an encoded message in a communication channel.
  • Any variation of a quantity or change in an entity over time that conveys information upon detection.
  • A sign made to give notice of some occurrence, command, or danger, or to indicate the start of a concerted action.
  • An on-off light, semaphore, or other device used to give an indication to another person.
  • An 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.
  • An action, change or process done to convey information and thus reduce uncertainty.
  • A token; an indication; a foreshadowing; a sign.
  • Useful information, as opposed to noise.
  • A simple interprocess communication used to notify a process or thread of an occurrence.
  • A signalling interaction between cells

Verb

  • communicate silently and non-verbally by signals or signs
    • "The diner signaled the waiters to bring the menu"
  • be a signal for or a symptom of
    • "The economic indicators signal that the euro is undervalued"
  • To indicate; to convey or communicate by a signal.
  • To communicate with (a person or system) by a signal.

Adjective Satellite

  • notably out of the ordinary
    • "the year saw one signal triumph for the Labour party"

Adj

  • Standing above others in rank, importance, or achievement.

Origin / Etymology

From Old French segnal, seignal or Medieval Latin signāle; noun use of the neuter of Late Latin signālis, from Latin signum; verb use from 1805, as a shortened from signalize (1650s).

Antonyms

noise

Scrabble Score: 7

signal is a valid Scrabble (US) TWL word
signal is a valid Scrabble Word in Merriam-Webster MW Dictionary
signal is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 10

signal is a valid Words With Friends word