blink

Everyday

1. To blink is to shut and open your eyes very quickly. tree →
2. A light can blink, which means go on and off quickly. tree →
3. In the blink of an eye means very, very quickly. tree →

In the lessons

an event repeated over time: blinks per minute, lights that blink every few seconds; in science: blinking keeps your eyes wet and clean; in everyday life: a blinking cursor, a car's blinking indicator; phrases: «in the blink of an eye», «without blinking» (without showing fear or surprise)

Examples

• People blink about 15 times a minute. tree →
• The light blinks every 4 seconds. tree →
• How many times does it blink in 1 minute? tree →
• Two lights blink at once. tree →
• She blinked in the bright sunlight. tree →
• Blinking keeps your eyes wet and clean. tree →
• The cursor blinks on the screen. tree →
• The magic trick was over in the blink of an eye. tree →
• He answered without blinking. tree →
• The stars saw her, and blinked at her. tree →

Note

A rate in time: times = rate × minutes. Trap: «every 4 seconds» from a first blink at 0 gives one more blink. Blink is quick and with both eyes; a wink is closing one eye on purpose.