signal

['signəl]

n.信号, 标志
v.(发信号)通知、表示
adj.显著的

n.[C]

1. 信号; 暗号[+to-v][+that]

A red lamp is used as a danger signal.

红灯用作危险信号。

2. 信号器; 交通指示灯; 【铁】信号机

The train must stop when the signal's red.

信号机是红色时, 火车必须停驶。

3. 导因; 近因; 导火线[(+for)]

4. 标志; 表示

a.

1. 作为信号的[B]

2. 显著的, 非凡的

This year has seen one signal triumph for them in the election.

今年是他们在选举中取得重大胜利的一年。

vt.

1. 用信号发出; 标志

A period signals the end of a sentence.

句号表示一个句子结束了。

2. 用信号通知, 以动作向……示意[O2][+that]

She signaled the car to stop by raising her hand.

她举手示意车停下。

vi.

发信号, 打信号[(+to/for)]

The teacher signaled for quiet.

教师示意大家安静。

词形变化

名词: signaler | 动词过去式: signaled/signalled | 动词过去分词: signaled/signalled | 动词现在分词: signaling/signalling | 动词第三人称单数: signals/signals |

词义辨析

同义:

v.警报, 发信号以示警告

alert  warn  alarm  honk one's horn  ring a bell  flash a light  light a flare  put on one's flashers  send up a rocket  shine a beacon

n.记号, 路标, 信号灯, 警报(器)

sign  marker  guidepost  milepost  milestone  landmark  seamark  beacon  light  flag  warning light  caution light  flare  rocket  monitor  pilot  alert  warning  whistle  alarm  horn  toot  bell  indicator  notice  siren  foghorn  semaphore

n.做手势, 暗示, 警告

gesture  gesticulation  cue  tip  tip-off  nod  indication  go-ahead  thumbs-up

n.口令, 通行令, 叫牌

password  watchword  countersign  convention

n.刺激, 激励, 原因

impetus  stimulus  fillip  spur  goad  prick  incentive  motive  reason  cause

n.记号, 符号

token  symbol  indication  mark

a.指示的, 领导的, 警告的

indicative  marking  directional  semaphoric  semaphorical  pilot  guiding  lead  warning  admonitory  sematic

a.重大的, 辉煌的, 无比的, 令人惊异的, 异常的, 稀有的

significant  important  momentous  weighty  big  consequential  outstanding  extraordinary  glorious  grand  fantastic  fabulous  splendid  super  unparalleled  nonpareil  unequaled  unprecedented  breathtaking  brilliant  unbelievable  remarkable  exceptional  unusual  uncommon  rare  singular

v.做手势

gesture  gesticulate  nod

v.通信, 传达, 打信号, 广播

communicate  express  speak  transmit  send  convey  semaphore  flag  wigwag  indicate  alert  give the go-ahead  give a thumbs-up  warn  shoot off a flase  

同义参见:

signify  flag  response  especial  code  beckon  buoy  wave  

英英释义

名词 signal:

any communication that encodes a message

同义词：signaling, sign

any incitement to action

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

动词 signal:

communicate silently and non-verbally by signals or signs

同义词：sign, signalize, signalise

be a signal for or a symptom of

同义词：bespeak, betoken, indicate, point

形容词 signal:

notably out of the ordinary

补充

signalsignal英:[ˈsiɡnəl] 美:[ˈsɪɡnəl]n.1.信号, 暗号Signals are made with flags or lamps.用旗或灯传递信号。2.(无线电或电视所传送的)讯号, 讯息, 图像We live too far from the city to get a strong television signal.我们住的地方离城里太远, 不能收到清晰的电视图像。vt. & vi.1.发信号; 用信号传达; 用信号通讯She is signaling.她正在发送信号。The submarine signaled for help.潜水艇发出求救的信号。She signaled the advance.她发出信号前进。She signaled that he was about to turn left.她打手势表示他就要转到左面去了。They signaled which way one is going to turn.他们打信号示意走哪一条路。He signaled a message to his brother.他用信号向他哥哥发信息。He signaled the waiter to bring the menu.他作手势要侍者拿菜单来。The conductor signaled the orchestra to rise.指挥打手势让乐队起立。Tom signaled his friend which way to go.汤姆示意他的朋友走哪条路。adj.1.明显的, (非常)显著的, 非凡的This is a signal failure.这是明显的失败。People speak of Mark Twain as a signal humourous writer.人们称马克·吐温为杰出的幽默作家。

例句

1. He waited for the signal to speak.他等着发言的信号。 2. As soon as it was dark, she gave the signal.天一黑, 她就发出了信号。 3. They saw the visit as an important signal of support.他们把这次访问看作是支持他们的重要信号。 4. We were held up for ages at a signal just outside Waterloo.我们在滑铁卢站外的信号灯那里停了很长时间。 5. He seemed to be signalling, but I didn't understand what he wanted me to do.他似乎在向我示意, 但我不明白他想让我做什么。 6. He signalled for the bill.他示意结账。 7. If you're going to turn you're supposed to signal.如果要转弯, 应该打转向灯示意。 8. signal the driver to move off.示意司机离开。 9. The outcome of that meeting could signal whether there truly exists a political will to begin negotiating.会议结果将昭示是否确实存在开始谈判的政治意愿。 10. He signalled his dissatisfaction.他表达了不满。 11. a signal honour极大的荣誉 12. to signal the headquarters向大本营发信号 13. to signal a message用信号发送消息 14. to signal a new historical period of标志着…的新历史时期 15. to signal with flags用旗语发信号 16. to signal for help发信号求救 17. the firing of the gun was the signal for a chain of beacons to be lit.开枪是接连点燃烽火的信号。 18. [with infinitive]the policeman raised his hand as a signal to stop.警察举起手，示意停下。 19. the markets are waiting for a clear signal about the direction of policy.市场正等待着一个明确的政策动向。 20. the champion's announcement that he was retiring was the signal for scores of journalists to gather at his last match.这位冠军宣布他将退役，这就是那么多记者出席他最后一场比赛的起因。 21. equipment for receiving TV signals.接收电视信号的设备。 22. hold your fire until I signal.在我发信号之前，一直举着火把。 23. she signalled Charlotte to be silent.她示意夏洛特不要说话。 24. [with complement]Stone signalled right.斯通打出右转的信号。 25. [with infinitive]the truck signalled to turn left.卡车打出左转的信号。 26. the Community could signal displeasure by refusing to cooperate.该社区可以通过拒绝合作来表明自己的不悦。 27. she gave a glance which signalled that her father was being secretive.她瞥了一眼，暗示她父亲不坦率。 28. he attacked the government for their signal failure of leadership.他攻击政府明显无能领导。 29. When I give (you) the signal, run!我一发出信号，你就跑！ 30. The fall in unemployment is a clear signal that the economy is improving.失业率下降明确标志着经济在改善。 31. a signal from a satellite恒星信号 32. She was signalling wildly that something was wrong.她拚命示意出了事。 33. The change in his behavior is clearly a signal [=indication] that there is a problem.他行为的改变清楚地表明存在问题。 34. He likes her but he is sending the wrong signals with his constant teasing.他喜欢她，可是他不断的戏弄给了她错误的信号。 35. Inflammation is a signal of infection.发炎是感染的信号。 36. Don't start until I give the signal. [=sign]等我发出信号再开始。 37. The teacher gave us the signal to finish what we were working on and hand in our tests.老师示意我们结束做题，上交试卷。 38. The pilot sent out a distress signal [=a message that the airplane was in danger] before the plane crashed.飞行员在飞机坠毁前发出了求救信号。 39. They communicated with each other by using hand signals. [=movements of a person's hands that mean something]他们彼此用手势交流。 40. Faulty wiring in the train station caused a signal to malfunction.火车站的线路故障导致了信号灯失灵。 41. The traffic signal [=traffic light] was not working.交通信号灯坏了。 42. The video/TV signal is scrambled.视频/电视信息被扰频。 43. Satellite dishes receive television signals.卫星电视的碟形天线接收电视信号。 44. a digital signal数字信号 45. The transmitter beams radio signals into space.发射机向太空发射无线电信号。 46. We'll need better equipment to generate a 50 Hz signal.为产生50赫兹的声波，我们需要更好的设备。 47. Robins signal the arrival of spring.知更鸟是春天到来的标志。 48. The election results surely signal the start/beginning of a new era.选举结果无疑标志着一个新纪元的开始。 49. "He signaled [=showed, communicated] his irritation by sighing and rolling his eyes dramatically."他夸张地叹息、翻白眼，以示自己非常恼怒。 50. "Redness, swelling, and painful itching signal [=indicate] an infection."发红、肿胀、又疼又痒说明有感染。 51. A lock on the suitcase might signal that there's something of value inside.手提箱上的锁表明里面可能有贵重物品。 52. Did he signal before he made the left turn?他左转之前开转向灯了吗？ 53. They signaled at me to come over to their table.他们示意我去他们那桌。 54. We signaled for help.我们发出了求救信号。 55. He signaled us that it was time to begin the meeting.他示意我们是时候开始会议了。 56. The umpire signaled a strike.裁判用手势示意这一球为好球。 57. Is he worthy of such a signal honor?他够格获得如此大的荣誉吗？ 58. The bill's passage was a signal [=notable] victory for environmentalists.这项法案的通过是环境保护者的一个重大胜利。 59. The mayor has signally failed to do what he promised to do.市长显然没有兑现自己的承诺。