Signal Verb Signalled B Noun Warning Make Give

sig·nal

I

\\ˈsig-n^əl\\ noun1.

sign

,

indication

2.
  a. an act, event, or watchword that has been agreed on as the occasion of concerted action
  b. something that incites to action
3. something (as a sound, gesture, or object) that conveys notice or warning
4.
  a. an object used to transmit or convey information beyond the range of human voice
  b. the sound or image conveyed in telegraphy, telephony, radio, radar, or television
  c. a detectable physical quantity or impulse (as a voltage, current, or magnetic field strength) by which messages or information can be transmitted

II

verb
(sig·naled or sig·nalled ; sig·nal·ing or sig·nal·ling \\-nə-liŋ\\) transitive verb
1. to notify by a signal
    signal the fleet to turn back
2.
  a. to communicate or indicate by or as if by signals
      signaled the end of an era
  b. to constitute a characteristic feature of (a meaningful linguistic form)
intransitive verb
: to make or send a signal
• sig·nal·er or sig·nal·ler noun

III

adjective: distinguished from the ordinary :
    a signal achievement

signal
 1.
  signal (n.) late 14c., from O.Fr. signal, from M.L. signale "a signal," from L.L. signalis (adj.) "used as a signal, pertaining to a sign," from L. signum "signal, sign." The verb is first recorded 1805, from the noun; earlier verb was signalize (1650s).
 2.
  signal (adj.)
  "remarkable, striking, notable" 1641, from Fr. signalé, pp. of signaler "to distinguish" (see signal (n.)).

☞ signal
sig·nal / 5si^nEl / noun1. a movement or sound that you make to give sb information, instructions, a warning, etc.
   信号；暗号
   SYN 

sign

:
   a danger / warning / distress etc. signal
   危险、警告、遇难等信号
   At an agreed signal they left the room.
   收到约定的信号后,他们离开了房间。
   The siren was a signal for everyone to leave the building.
   警报器一响,就是要所有人离开大楼。
   When I give the signal, run!
   我一发信号,你就跑！
   (NAmE) All I get is a busy signal when I dial his number (= his phone is being used).
   我什么时候拨他的电话听到的都是忙音。
    hand signals (= movements that

cyclists

and drivers make with their hands to tell other people that they are going to stop, turn, etc.)
   骑车人和驾车人的示意手势
⇨ see also

turn signal

2. an event, an action, a fact, etc. that shows that sth exists or is likely to happen
   标志；预示；信号
   SYN 

indication

:
   The rise in inflation is a clear signal that the government's policies are not working.
   通货膨胀率的上升清楚地表明,政府的政策不起作用。
   Chest pains can be a warning signal of heart problems.
   胸部疼痛可能是心脏病的报警信号。
   Reducing prison sentences would send the wrong signals to criminals.
   减刑会向犯罪分子发出错误的信息。
⇨ note at

sign

3. a piece of equipment that uses different coloured lights to tell drivers to go slower, stop, etc., used especially on railways / railroads and roads
   (尤指铁路和公路上的)指示灯,信号灯,红绿灯:
   traffic signals
   交通信号灯
   a stop signal
   停车信号
4. a series of electrical waves that carry sounds, pictures or messages, for example to a radio or television
   (传输声音、图像或其他信息的电波)信号:
   TV signals
   电视信号
   a high frequency signal
   高频信号
   a radar signal
   雷达信号
   to detect / pick up signals
   探测/收到信号
   to emit a signal
   发射信号 verb (-ll-, US -l-)
1. ~ (to sb) to make a movement or sound to give sb a message, an order, etc.
   发信号；发暗号；示意:
  ▪ [V]
   Don't fire until I signal.
   等我发出信号后再开枪。
   Did you signal before you turned right?
   右转弯前你示意了吗？
   He signalled to the waiter for the bill.
   他示意服务员结账。
  ▪ [VN]
   The referee signalled a foul.
   裁判鸣哨示意犯规。
  ▪ [V (that)]
   She signalled (that) it was time to leave.
   她示意该走了。
  ▪ [V to inf]
   He signalled to us to join him.
   他示意要我们去他那儿。
  ▪ [VN to inf]
   She signalled him to follow.
   她示意他跟她走。
  ▪ [V wh-]
   You must signal which way you are going to turn.
   你要朝哪个方向转,必须发出信号。
2. [VN] to be a sign that sth exists or is likely to happen
   标志；表明；预示
   SYN 

indicate

:
   This announcement signalled a clear change of policy.
   这个声明显示政策有明显的改变。
   The scandal surely signals the end of his political career.
   毫无疑问,这桩丑闻预示他的政治生涯就此结束。
3. to do sth to make your feelings or opinions known
   表达；表示；显示:
  ▪ [VN]
   He signalled his discontent by refusing to vote.
   他拒绝投票以示不满。
  ▪ [V (that)]
   She has signalled (that) she is willing to stand as a candidate.
   她表示愿意作为候选人参加竞选。 adjective [only before noun]
   (formal) important
   重大的；显要的:
   a signal honour
   极大的荣誉
• sig·nal·ly / -nEli / adv.:
   They have signally failed to keep their election promises.
   他们显然没有履行自己的竞选承诺。

signal verb

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signal noun

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sig·nal
I. \ˈsignəl, -n^əl\ noun
(-s)
Etymology: Middle English, from Middle French seignal, segnel, signal, from Medieval Latin signale, from Late Latin, neuter of signalis of a sign, from Latin signum sign + -alis -al — more at
1. obsolete : ,
2. archaic : ,
 < in signal of my love to thee — Shakespeare >
3.
 a. : an act, event, or watchword that has been agreed upon as the occasion of concerted action
  < signal fires of rebellion >
 b. : something that incites to action : an immediate cause or impulse
  < his remark was the signal for a storm of weeping >
4.
 a. : a sound or gesture made to give warning or command
  < signal that warns of an air raid >
  < waiting for the signal to open fire >
 b. : an object placed to convey notice or warning: as
  (1) : a device (as a colored light) for regulating vehicular or pedestrian traffic
  (2) : a device used to warn trainmen or persons approaching a railroad of danger or to convey orders or information to a train crew
5. : an object (as a flag on a pole) centered over a point so as to be observed from other positions in surveying
6.
 a. : an identifying tab (as of a thumb index) fastened to a book leaf at its fore edge
 b. : a small projecting tab that attaches to the edge of a card or folder as an aid in filing or indexing
7. : a play indicating to one's partner in a card game that one holds certain cards or desires a certain play
8. : the beam of light reflected from the face of a crystal rotated into a particular position in a goniometer
9.
 a. : an object used to transmit or convey information beyond the range of human voice
  < flying a flag as a distress signal >
 b. : the intelligence, message, sound, or image conveyed in telegraphy, telephony, radio, radar, or television
 c. : a detectable physical quantity or impulse (as a voltage, current, magnetic field strength) by which messages or information can be transmitted
10. : a speech sound or form or combination of sounds and forms that communicates a meaning or a difference in meaning — compare ,
II. verb
(signaled or signalled ; signaled or signalled ; signaling or signalling ; signals)
transitive verb
1. : to notify by a signal : make a signal to
 < signaled his wife to leave the room >
 < signaled the fleet to turn back >
2.
 a. : to communicate (a message) by signals
  < signal orders to a field unit >
 b. : announce by signal
  < the ship signaled her departure with warning blasts on the whistle >
 c. : to determine or fix (meaning) in a speech utterance
  < the kind of sentence … is signaled by special contrastive patterns in the arrangement of … parts of speech — C.C.Fries >
  : constitute a characteristic feature of (a meaningful linguistic form)
  < plurality is usually signaled by s >
3. :
 < waiter with tray signals a café — National Geographic >
intransitive verb
: to make or send a signal
 < frantically signaling with both arms >
III. adjective
Etymology: modification of French signalé, past participle of signaler to distinguish, from Old Italian segnalare to signal, distinguish, from segnale signal, from Medieval Latin signale
1. : distinguished from what is ordinary : ,
 < signal achievement >
 < students of signal promise >
 < signal experience >
2. : ,
 < signal markings >
3. : employed or used in signaling
 < signal beacon >
 < signal flags >
 < signal corps >

Synonyms: see