What does "turn signal" mean?

Each of the flashing lights on each side of a vehicle which is used to indicate the vehicle is moving left or right.

What is a synonym for "turn signal"?

Common synonyms include: blinker, turn indicator, indicator, trafficator, vehicle turn signal.

noun

noun ·Rare ·Advanced level

Noun

1
Each of the flashing lights on each side of a vehicle which is used to indicate the vehicle is moving left or right. US
"The hazard lights turn on all the turn signals."
2
a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn wordnet

"The hazard lights turn on all the turn signals."