divot vs sward

divot and sward both are nouns.

Word	Noun	Adjective	Verb	Adverb
divot	Yes	No	No	No
sward	Yes	No	No	No

As nouns, sward is a hypernym of divot; that is, sward is a word with a broader meaning than divot:

divot: a piece of turf dug out of a lawn or fairway (by an animals hooves or a golf club)
sward: surface layer of ground containing a mat of grass and grass roots

Other hypernyms of divot include greensward, sod, turf.

divot (noun)	sward (noun)
a piece of turf dug out of a lawn or fairway (by an animals hooves or a golf club)	surface layer of ground containing a mat of grass and grass roots
(golf) the cavity left when a piece of turf is cut from the ground by the club head in making a stroke