heartbeat
definition: an animating or vital unifying force
example: New York is the commercial heartbeat of America
speech part: noun
synonyms:
definition: the rhythmic contraction and expansion of the arteries with each beat of the heart
example:
speech part: noun
synonyms:
beat
definition: a very short time (as the time it takes the eye to blink or the heart to beat)
example:
speech part: noun
synonyms:
wink