beat vs stroke

beat and stroke both are nouns.

Word	Noun	Adjective	Verb	Adverb
beat	Yes	Yes	Yes	No
stroke	Yes	No	Yes	No

As nouns, stroke is a hypernym of beat; that is, stroke is a word with a broader meaning than beat:

beat (noun)	stroke (noun)
the act of beating to windward; sailing as close as possible to the direction from which the wind is blowing	(sports) the act of swinging or striking at a ball with a club or racket or bat or cue or hand
a stroke or blow	a light touch with the hands
a regular rate of repetition	a single complete movement
the basic rhythmic unit in a piece of music	any one of the repeated movements of the limbs and body used for locomotion in swimming or rowing
(prosody) the accent in a metrical foot of verse	a punctuation mark (/) used to separate related items of information
the rhythmic contraction and expansion of the arteries with each beat of the heart	a mark made on a surface by a pen, pencil, or paintbrush
the sound of stroke or blow	the maximum movement available to a pivoted or reciprocating piece by a cam
a regular route for a sentry or policeman	a light touch
a member of the beat generation; a nonconformist in dress and behavior	anything that happens suddenly or by chance without an apparent cause
a single pulsation of an oscillation produced by adding two waves of different frequencies; has a frequency equal to the difference between the two oscillations	the oarsman nearest the stern of the shell who sets the pace for the rest of the crew
	(golf) the unit of scoring in golf is the act of hitting the ball with a club
	a sudden loss of consciousness resulting when the rupture or occlusion of a blood vessel leads to oxygen lack in the brain

beat (adjective)	stroke (adjective)
very tired

beat (verb)	stroke (verb)
wear out completely	treat gingerly or carefully
be a mystery or bewildering to	strike a ball with a smooth blow
come out better in a competition, race, or conflict	row at a particular rate
beat through cleverness and wit	touch lightly and repeatedly, as with brushing motions
hit repeatedly
give a beating to; subject to a beating, either as a punishment or as an act of aggression
stir vigorously
strike (a part of one's own body) repeatedly, as in great emotion or in accompaniment to music
strike (water or bushes) repeatedly to rouse animals for hunting
shape by beating
make by pounding or trampling
produce a rhythm by striking repeatedly
move rhythmically
sail with much tacking or with difficulty
move with a flapping motion
indicate by beating, as with the fingers or drumsticks
move with a thrashing motion
move with or as if with a regular alternating motion
make a rhythmic sound
make a sound like a clock or a timer
glare or strike with great intensity
avoid paying
be superior