1. (noun) pulse, pulsation, heartbeat, beat
the rhythmic contraction and expansion of the arteries with each beat of the heart
Synonyms: beatnik, instant, metre, pulse, meter, impulse, beat, heartbeat, flash, musical rhythm, split second, round, pulsation, heart rate, wink, rhythm, measure, pulsing, jiffy, cadence, blink of an eye, pulse rate, trice, twinkling
2. (noun) blink of an eye, flash, heartbeat, instant, jiffy, split second, trice, twinkling, wink, New York minute
a very short time (as the time it takes the eye to blink or the heart to beat)
Synonyms: nictitation, second, instant, blinking, flashbulb, pulse, flashgun, eye blink, beat, heartbeat, minute, news bulletin, moment, flash, photoflash, split second, flare, pulsation, winking, flash bulb, wink, nictation, newsbreak, flashing, newsflash, jiffy, ostentation, flash lamp, blink of an eye, blink, fanfare, trice, twinkling
3. (noun) heartbeat
an animating or vital unifying force
Synonyms: instant, blink of an eye, wink, pulse, flash, split second, jiffy, pulsation, beat, twinkling, trice
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Synonyms for heartbeat 
