(n)pulse, pulsation, heartbeat, beatthe rhythmic contraction and expansion of the arteries with each beat of the heart“he could feel the beat of her heart”
(n)beata single pulsation of an oscillation produced by adding two waves of different frequencies; has a frequency equal to the difference between the two oscillations
(v)beat, beat out, crush, shell, trounce, vanquishcome out better in a competition, race, or conflict“Agassi beat Becker in the tennis championship”, “We beat the competition”, “Harvard defeated Yale in the last football game”
(v)beat, beat up, work overgive a beating to; subject to a beating, either as a punishment or as an act of aggression“Thugs beat him up when he walked down the street late at night”, “The teacher used to beat the students”
(v)beatstrike (a part of one's own body) repeatedly, as in great emotion or in accompaniment to music“beat one's breast”, “beat one's foot rhythmically”
(s)all in, beat, bushed, deadvery tired“was all in at the end of the day”, “so beat I could flop down and go to sleep anywhere”, “bushed after all that exercise”, “I'm dead after that long trip”