signal
/ˈsɪɡnəl/
CEFR level B1Topic TechnologyWord #2138 in the learning path
信号；暗号
Definitions
n. A sound, movement, or light that communicates a message.
信号；暗号
n. An electrical or radio wave carrying information.
电子信号
v. Communicate through an action, or indicate that something is happening.
示意；表明
Example
The coach gave a signal, and we started running.
教练发出信号后，我们开始跑步。
Increasing investment in renewable energy may signal a government's commitment to reducing its dependence on fossil fuels.
增加可再生能源投资，可能表明政府致力于减少对化石燃料的依赖。
Collocations
- give a signal
- a weak signal
- signal a change
Word family
- signalling (n.)
Usage tip
过去式英式常写signalled，美式常写signaled。
FAQ
- What does signal mean?
- A sound, movement, or light that communicates a message. An electrical or radio wave carrying information. Communicate through an action, or indicate that something is happening.
- How is signal pronounced?
- UK /ˈsɪɡnəl/, US /ˈsɪɡnəl/. Use the audio buttons above to listen.
