1.
traffic light, traffic signal
A device with colored lights used to control traffic at intersections.
信号が赤だ。
The light is red.
次の信号を右に曲がってください。
Please turn right at the next traffic light.
信号が青になったら渡ってください。
Please cross when the light turns green.
In Japanese, the green light is called 青 (blue)
2.
signal, sign
A gesture, action, or sound that conveys information or instructions.
信号を送る。
To send a signal.
電波信号を受信した。
We received a radio signal.
出発の信号が出たら、すぐに走り始めてください。
When the starting signal is given, please begin running immediately.
信号 most commonly refers to traffic lights in everyday conversation.
TRAFFIC LIGHT COLORS:
- 青信号 (green light - literally "blue signal")
- 赤信号 (red light)
- 黄色信号 (yellow light)
COMMON COLLOCATIONS:
- 信号を無視する (to ignore a traffic light)
- 信号待ち (waiting at a traffic light)
- 信号機 (traffic light device)
- 信号を送る (to send a signal)
CULTURAL NOTE:
In Japan, the green light is traditionally called 青 (blue) rather than 緑 (green).