also: ウィンカー · ウインカ · ウィンカ
turn signal; blinker; indicator
Standard term for a vehicle's turn signal. Used in everyday driving contexts.
from English winker
Please use your turn signal before turning right.
The turn signal is broken, so I took it in for repair.
I put on my turn signal before making a right turn.
Please turn on your turn signal when changing lanes.
I noticed his car's turn signal was blinking.