greensward vs divot

greensward and divot both are nouns.

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

As nouns, divot is a hyponym of greensward; that is, divot is a word with a more specific, narrower meaning than greensward:

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

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