blinker

noun

1. a device for flashing light signals.
2. a light that flashes intermittently, especially one that serves as a traffic signal.
3. either of two leather flaps on a bridle, to prevent a horse from seeing sideways; a blinder.

verb (used with object)

4. to put blinkers on.

noun

1. a flashing light for sending messages, as a warning device, etc, such as a direction indicator on a road vehicle
2. (often plural) a slang word for eye 1

verb (tr)

3. to provide (a horse) with blinkers
4. to obscure with or as if with blinkers