signal的意思是：n.信号；标志；v.(发信号)通知、表示；adj.显著的。signal的详尽释义是n.(名词)信号，暗号，讯号导火线信号器动机标志预兆，征象，预示号令，指示，通知《信号报》（交通）指示灯【铁】信号机导因，近因表示。signal的词语用法是v.(动词)signal用作及物动词时,可接名词、代词或that/wh从句作宾语。signal还可接双宾语,常以带或不带疑问词的动词不定式作直接宾语,其间接宾语可以由介词to引出, to可以省略。不用于被动结构。
一、详尽释义点此查看signal的详细内容
二、双解释义
三、词典解释
1.(以手势、声音、行动等发出的)信号，暗号
Asignal is a gesture, sound, or action which is intended to give a particular message to the person who sees or hears it.
e.g. They fired three distress signals...
他们发射了3次求救信号。
e.g. As soon as it was dark, Mrs Evans gave thesignal...
天一黑，埃文斯夫人就发出了信号。
2.(用手势、声音等)发信号，发暗号，示意
If yousignal to someone, you make a gesture or sound in order to send them a particular message.
e.g. The United manager was to be seen frantically signalling to McClair...
一会儿可以看到曼联主教练拼命地朝麦克莱尔示意。
e.g. He stood up, signalling to the officer that he had finished with his client...
他站起身，向警察示意他和他的当事人已经谈完了。
3.迹象;信号;预示
If an event or action is asignal of something, it suggests that this thing exists or is going to happen.
e.g. Kurdish leaders saw the visit as an importantsignal of support...
库尔德领导人将这次访问视作一种表示支持的重要信号。
e.g. The first warning signals came in March...
第一次警示出现在3月份。
4.预示;表明;显示
If someone or somethingsignals an event, they suggest that the event is happening or likely to happen.
e.g. She will be signalling massive changes in energy policy...
她将暗示能源政策会有重大变化。
e.g. Britain was signalling its readiness to have the embargo lifted...
英国表示愿意取消贸易禁令。
5.(铁路上的)指示灯，信号灯
Asignal is a piece of equipment beside a railway, which indicates to train drivers whether they should stop the train or not.
6.(传输信息的无线电、光波或电流)信号
Asignal is a series of radio waves, light waves, or changes in electrical current which may carry information.
e.g. ...high-frequency radio signals.
高频无线电信号
7.重大的;显要的;非凡的
You usesignal to describe a success or failure when you are emphasizing the fact that it has occurred and are indicating that the consequences are significant.
e.g. His final round was asignal triumph in a career marked by many sweet moments.
最后一场比赛的胜利在他充满欣喜的职业生涯中具有非凡的意义。
e.g. ...John Major'ssignal failure to grab America's attention.
约翰·梅杰显然没有能够引起美国的注意
四、例句
A red lamp is often a danger signal.
红灯常常是危险的信号。
I corrected my watch by the time signal.
我按报时信号校正我的表。
I've called several times, but I keep getting a busy signal.
我打了好几次了,可是一直是忙音。
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。
Her speech yesterday is a signal that her view has changed.
她昨天的讲话标志著她的观点已经转变。
The police signalled the traffic to move forward slowly.
警察向来往车辆打信号，示意缓慢前行。
The submarine signaled for help.
潜水艇发出求救的信号。
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。
This is a signal success.
这是显著的成功。
五、词汇搭配
六、经典引文
Her sobs..became more subdued..a signal to Dan that she would soon relent.
出自：E. CaldwellSterling M3..had given misleading signals.
出自：TimesSignal villains of every class.
出自：John FosterTo have done this at all would be a signal achievement.
出自：K. TynanSeeing him enter the room..she signalled him to approach.
出自：P. G. WodehouseThrew open the door and signalled the escort captain.
出自：B. Malamud七、词源解说
signal的相关近义词
indication、sign、gesture、motion
signal的相关临近词
signatory、sign、signally、signaler、signalman、signaling、signal to、signalase、signalled、signaller、signalize、signalise