stop-and-go device
nounUK /ˌstɒp ən ˈɡəʊ dɪˌvaɪs/
US /ˌstɑːp ən ˈɡoʊ dɪˌvaɪs/
A stop-and-go device is a thing that tells people when to stop and when to go.
The crossing guard held up a stop-and-go device so the children could cross safely.
RELATED WORDS
OTHER MEANINGS
2. A handheld sign used by a school crossing guard to control traffic.
The guard flipped the stop-and-go device to 'stop' as the kids walked across.
3. Any mechanical or electronic control that alternates between halting and allowing movement.
The factory uses a stop-and-go device to pace the conveyor belt.
4. A toy or game button that players press to start and pause action.
Press the stop-and-go device to freeze the dancing robot.