1. the rhythmic contraction and expansion of the arteries with each beat of the heart

- he could feel the beat of her heart

Similar word(s): beat, pulsation, pulse

Definition categories: event

2. a very short time (as the time it takes the eye to blink or the heart to beat)

Similar word(s): flash, instant, jiffy, trice, twinkling, wink

Definition categories: time, bit, minute, mo, moment, second

3. an animating or vital unifying force

- New York is the commercial heartbeat of America

Definition categories: attribute, force

Sentences with heartbeat as a noun:

- The policeman waited for a heartbeat in vain

- He alone gives me such heartbeats

- If your heartbeat doesn't normalize soon, consult a doctor!

- Music is the heartbeat of the people.

- The ambulance arrived in a heartbeat.