noun. undefined

noun. An indicator, such as a gesture or colored light, that serves as a means of communication. synonym: gesture.

noun. A message communicated by such means.

noun. Something that incites action.

noun. undefined

noun. An impulse or fluctuating quantity, as of electrical voltage or light intensity, whose variations represent coded information.

noun. A sequence of digital values whose variations represent coded information.

noun. The sound, image, or message transmitted or received by means of telecommunications.

adjective. Notably out of the ordinary.

intransitive verb. To make a signal to.

intransitive verb. To relate or make known by signals.

intransitive verb. To cause an effect in (a cell) by the release of a chemical, such as a neurotransmitter or hormone.

intransitive verb. To make a signal or signals.

To mark with a sign.

To communicate or make known by a signal or by signals: as, to signal orders; a vessel signals its arrival.

To make signals to: as, the vessel signaled the forts.

To he a sign or omen.

To give a signal or signals; make communication by signals.

noun. undefined

noun. In whist, any method of showing that the player wants trumps led. See trumps signal.

Constituting, or serving as, a typical sign or index; especially conspicuous or noteworthy; strikingly uncommon: as, a signal example; a signal failure; signal prosperity.

Of high grade or quality; eminent; great; elevated: applied to persons and feelings.

Synonyms Conspicuous, extraordinary.

noun. Sign; token; indication.

noun. A conventional or intelligible sign designed for information or guidance; an object displayed, a motion made, a light shown, a sound given out, or the like, for direction to or communication with a person or persons (especially at a distance) apprised of or able to recognize its intended meaning: as, to hoist, sound, or make a signal; military and naval signals; a warning signal; a book of signals (see signal-book).

noun. An inciting action or movement; an exciting cause; an initial impulse: as, this tyrannous act was the signal for insurrection.

noun. A sign made for the purpose of giving notice 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.

noun. A token; an indication; a foreshadowing; a sign.

adjective. Noticeable; distinguished from what is ordinary; eminent; remarkable; memorable.

adjective. Of or pertaining to signals, or the use of signals in conveying information.

adjective. a bureau of the government (in the United States connected with the War Department) organized to collect from the whole country simultaneous raports of local meteorological conditions, upon comparison of which at the central office, predictions concerning the weather are telegraphed to various sections, where they are made known by signals publicly displayed.

adjective. the place where a signal is displayed; specifically, an observation office of the signal service.

transitive verb. To communicate by signals.

transitive verb. To notify by a signals; to make a signal or signals to.

noun. An indication given to another person.

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

noun. 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.

noun. Useful information.

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

verb. To indicate.

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

verb. be a signal for or a symptom of

noun. any incitement to action

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

adjective. notably out of the ordinary

verb. communicate silently and non-verbally by signals or signs

noun. any nonverbal action or gesture that encodes a message

"This became a spam signal because it is so easy to create large database driven websites, but in the case of many sites it is also a good * quality signal* because the site may be very info rich, covering basically every mile of the Oregon Coast Highway 101 in good, objective detail."