signal 1

（为了警告、命令或报信而发 出的）信号，暗号

导致其他事情发生的行为；导火线

〈铁路〉信号灯

交通管理色灯，红绿灯

（无线电或电视）讯号，图像

signal 2

显著的；重大的；卓越的，超群的

发信号

用信号表示（警告、通知等）

表示，显示

signal

信号

信号的

发信号, 用信号通知

signal

1. any communication that encodes a message; "signals from the boat suddenly stopped"

(synonym) ,

(hypernym)

(hyponym)

(derivation) , , ,

2. any incitement to action; "he awaited the signal to start"; "the victory was a signal for wild celebration"

(hypernym) , ,

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

(hypernym) ,

1. communicate silently and non-verbally by signals or signs; "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu"

(synonym) , ,

(hypernym) ,

(hyponym)

(derivation) ,

2. be a signal for or a symptom of; "These symptoms indicate a serious illness"; "Her behavior points to a severe neurosis"; "The economic indicators signal that the euro is undervalued"

(synonym) , , ,

(hypernym)

(hyponym) , , , , , , , , , , , ,

(derivation) ,

1. notably out of the ordinary; "the year saw one signal triumph for the Labour party"

(similar)