Semaphore Meaning in English
word
释义
A semaphore is a system for sending signals, often with flags or mechanical arms. It can also refer to a railway signal or a way computers control shared resources.
用法与细微差别
Mostly formal or technical, found in railway, maritime, military signaling, or computer science. In everyday English, 'traffic light' is not called 'semaphore'. In computing, 'semaphore' is a synchronization tool.
例句
A railway semaphore tells trains when to stop or go.
basic
The sailors used semaphore to send messages with flags.
basic
A computer semaphore helps control access to a resource.
basic
I saw an old semaphore signal near the train tracks yesterday.
natural
They quickly learned to use semaphore for silent communication.
natural
In programming, a semaphore prevents two processes from using the printer at the same time.
natural