signal

n.

1. 1. An indicator, such as a gesture or colored light, that serves as a means of communication. See synonyms at gesture.
   2. A message communicated by such means.
2. Something that incites action: The peace treaty was the signal for celebration.
3. Electronics. An impulse or a fluctuating electric quantity, such as voltage, current, or electric field strength, whose variations represent coded information.
4. The sound, image, or message transmitted or received in telegraphy, telephony, radio, television, or radar.

adj.

Notably out of the ordinary: a signal feat; a signal event.

v., -naled or -nalled, -nal·ing or -nal·ling, -nals or -nals.

v.tr.

1. To make a signal to: I signaled the driver to proceed.
2. To relate or make known by signals: They have signaled their willingness to negotiate.

v.intr.

To make a signal or signals.

[Middle English, from Old French, from Medieval Latin signāle, from neuter of Late Latin signālis, of a sign, from Latin signum, sign. See sign.]

signaler sig'nal·er or sig'nal·ler n.

The value of a measurement that would be observed if the measurement were not contaminated by random errors.

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Sending control signals that start and stop a transmission or other operation. The signals are the commands that request an operation to be performed. For example, in telephony, a control signal is sent to establish a call, and later one is sent to tear down (disconnect) the call. See call control, signaling in/out of band and signal.

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Communication transmitted and received over the airwaves, as radio and television signals. Particularly in radio, people often speak of a strong or weak signal when referring to the clarity and audibility with which the sound is heard. In radio, the signal is actually an electrical impulse made by changing audible sounds of various frequencies into electrical waves of the same frequencies for broadcasting. In television, light waves are also produced along with the audio signal, so that an image is received along with the audio portion.

noun

An expressive, meaningful bodily movement: gesticulation, gesture, indication, motion, sign. Informal high sign. See express.

adjective

Readily attracting notice: arresting, bold, conspicuous, eye-catching, marked, noticeable, observable, outstanding, pointed, prominent, pronounced, remarkable, salient, striking. Idioms: sticking out like a sore thumb,, see/not see.

verb

1. To communicate by means of such devices as lights or signs: flag¹, semaphore. See express, words.
2. To make bodily motions so as to convey an idea or complement speech: gesticulate, gesture, motion, sign, signalize. Idioms: give the high sign. See express.

adj

Definition: extraordinary, outstanding
Antonyms: insignificant, unexceptional, unimpressive, unnoteworthy

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is short for:

Meaning	Category
Statistical Indicators Of Growth, Navigation, Alignment, And Learning	Community->Educational
Stream Invertebrate Grade Number Average Level	Medical->Veterinary
System Integrating Gps To Nullify Absence And Lateness	Governmental->Military

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(DOD, NATO) 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.

IN BRIEF: A hand motion, mechanical movement or other indicator that conveys meaning.

The red light on the traffic signal tells drivers and pedestrians to stop.

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Dansk (Danish)
1.
n. - signal, tegn
v. intr. - give tegn, signalere
v. tr. - antyde, gøre tegn

idioms:

• signal box    signalhus, signalpost

2.
adj. - særlig fremragende, eklatant, overlegen

Nederlands (Dutch)
signaal, sein, verkeerslicht, een teken geven, seinen

Français (French)
1.
n. - signal, feu de signalisation, signe, (Rail) signal, (Radio, TV, Électron) signal, (fig) message
v. intr. - faire signe
v. tr. - faire signe, (fig) indiquer, annoncer, marquer, faire

idioms:

• signal box    (Rail) poste d'aiguillage

2.
adj. - frappant, exceptionnel

Deutsch (German)
1.
n. - Signal, Zeichen
v. - ein Zeichen geben, signalisieren, anzeigen

idioms:

• signal box    Stellwerk

2.
adj. - Signal..., als Signal dienend, bemerkenswert, außergewöhnlich

Ελληνική (Greek)
n. - σήμα, σηματοδότης, σινιάλο, σύνθημα, (στον πληθ.) (στρατ.) διαβιβάσεις
v. - παρέχω ένδειξη, εμφαίνω, σηματοδοτώ, παριστάνω, συμβολίζω, σημαίνω, στέλνω σήμα

idioms:

• signal box    οικίσκος σηματοδοσίας, φυλάκιο διαβιβάσεως σημάτων, κιβώτιο σηματοδοσίας, σηματοδότης

Italiano (Italian)
fare cenno, segnale

idioms:

• signal box    cabina di blocco

Português (Portuguese)
n. - sinal (m), ordem (f), indício (m)
v. - informar, fazer sinais, sinalizar

idioms:

• signal box    cabina de controle da estação ferroviária
• time signal    sinal (m) cronológico

Русский (Russian)
команда, сигнал, признак, знак, связь, войска связи, знаменательный, выдающийся, сигнальный, сигнализировать

idioms:

• signal box    пост централизации, сигнальная будка
• time signal    радио-сигнал (точного) времени

Español (Spanish)
1.
n. - señal
v. intr. - hacer señas, señalar, indicar
v. tr. - hacer señas, señalar, indicar

idioms:

• signal box    cabina del cambio de agujas

2.
adj. - notable, extraordinario, ejemplar

Svenska (Swedish)
n. - signal, tecken
v. - signalera, ge signal, ge tecken, teckna

中文（简体）(Chinese (Simplified))
信号, 信号器, 暗号, 交通指示灯, 作为信号的, 显著的, 向...作信号, 用信号通知, 标志, 发信号, 打信号

idioms:

• signal box    信号所

中文（繁體）(Chinese (Traditional))
n. - 信號, 信號器, 暗號, 交通指示燈
adj. - 作為信號的, 顯著的
v. tr. - 向...作信號, 用信號通知, 標誌
v. intr. - 發信號, 打信號

idioms:

• signal box    信號所

한국어 (Korean)
1.
n. - 신호, (행동의) 계기, (카드놀이) 시그널
v. intr. - 신호하다, 눈짓하다
v. tr. - ~을 신호로 알리다, ~이라는 것을 알리다

2.
adj. - 신호용의, 현저한, 주목할 만한

日本語 (Japanese)
n. - 信号, 合図, 信号機, 信号を発する物, きっかけ, 動機, シグナル
v. - 合図する, 合図で知らせる
adj. - 合図の, 顕著な

idioms:

• signal box    信号扱所

العربيه (Arabic)
‏(الاسم) أشارة (فعل) يشير, يبلغ بالاشارة‏

עברית (Hebrew)
n. - ‮אות, סימן, רמז, איתות, תמרור, רמזור, אותות שידור וקליטה‬
v. intr. - ‮אותת, נתן אות‬
v. tr. - ‮יצר תקשורת באמצעות אותות‬
adj. - ‮בולט, יוצא דופן, מרשים‬

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Signal Reach	signal repeater
Signal Booster	turn signal