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IELTS BNC: 1960 COCA: 2078
signal
noun [C] /ˈsɪɡn(ə)l/
singularsignal
pluralsignals
  1. 1
    a movement or sound made by someone that has a special meaning to another person 暗号;信号
    give (someone) a signal :

    We waited for them to give us the signal to move. 我们等着他们给我们发出前进的信号。

    signal to :

    He gave a signal to his driver to carry on. 他示意司机继续开车。

    at a signal :

    At the prearranged signal, we all jumped up and shouted ‘Surprise!' 在约定的暗号发出时,我们都跳了出来,大叫一声“惊喜!”

    do something as a signal (of something) :

    They waved a flag as a signal of distress. 他们摇旗表示求救。

    mixed/conflicting signals (=signals that have different meanings) 有歧义/自相矛盾的信息 :

    She knew she was sending him mixed signals. 她明白自己发给他的信息自相矛盾。

     Synonyms and related words
     Synonyms and related words
    1. a.
      information sent from one thing or person to another using a piece of equipment or an organized system (传递的)信息

      sailors practising their semaphore signals 练习旗语的海员

       Synonyms and related words
  2. 2
    a fact, event, or action that shows what someone intends to do or shows what is likely to happen 征兆;预兆
    signal of :

    They had ignored the strong signals of an approaching economic crisis . 他们忽视了即将到来的经济危机的强烈征兆。

    signal for/to :

    The election was a signal for the party to rethink its strategies. 这次选举对该党来说是一个需要重新考虑其策略的信号。

    give/send a signal :

    In terms of their personal relationships, teachers have to be very careful not to send students the wrong signals. 在个人关系方面,教师要特别谨慎,以免给学生发出错误的信号。

    read the signals (=understand their meaning correctly) 明白意思 :

    When she told him she was leaving, Bill wasn't surprised – he had read the signals. 她告诉比尔要走时,比尔并不感到吃惊,他早就明白她的意思。

     Synonyms and related words
  3. 3
    pictures, sound, or other information sent by one piece of electronic equipment and received by another one (电子)信息,信号

    radio signals 无线电讯号

    carry a signal :

    The copper wire carries the electrical signals. 铜丝可以传递电讯信号。

     Synonyms and related words
  4. 4
    a piece of equipment with coloured lights on it that tells the driver of a vehicle to stop, go, or slow down 交通信号灯;红绿灯

    The signal was at green. 当时是绿灯亮着。

signal
verb /ˈsɪɡn(ə)l/
present tense
I/you/we/theysignal
he/she/itsignals
present participlesignalling
past tensesignalled
past participlesignalled
  1. 1
    [I/T] to make a movement or sound that has a special meaning to another person 发信号;打信号;用信号示意

    The cyclist signalled and turned right. 骑车者发出信号后向右转。

    signal to someone :

    He signalled frantically across the room to his wife. 他冲着屋子对面的妻子猛打手势。

    signal (to) someone to do something :

    The driver signalled her to cross the road. 司机示意让她过马路。

    signal that :

    He flashed his torch to signal that he was ready. 他闪了闪手电筒,示意他准备好了。

     Synonyms and related words
  2. 2
    [T] to show that something is happening or will happen 表明;标志着

    This agreement signalled the end of the war. 这项协议标志着战争的结束。

    signal that :

    The new tax signalled that the government was serious about the environment. 这项新税收表明政府对环境问题是认真的。

     Synonyms and related words
  3. 3
    [T] if you signal a quality or your feelings, you show what you intend to do about something 告知;表示

    The kidnappers have signalled their willingness to negotiate. 绑匪已经表示愿意谈判。

    Both parties have signalled their determination to win. 两党都已表示出要赢的决心。

     Synonyms and related words
    To show or express emotions: show, display, manifest...
signal
adjective very formal /ˈsɪɡn(ə)l/
  1. especially important and noticeable 极重要的;显著的;非凡的

    a signal honour 莫大的荣誉

     Synonyms and related words
    Important: important, major, key...
     Synonyms and related words
    Obvious: obvious, clear, significant...

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