sward vs turf

sward and turf both are nouns.

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

As nouns, sward and turf are synonyms defined as:

sward and turf: surface layer of ground containing a mat of grass and grass roots

Other synonyms of sward include greensward, sod.

sward (noun)	turf (noun)
surface layer of ground containing a mat of grass and grass roots	range of jurisdiction or influence
	the territory claimed by a juvenile gang as its own
	surface layer of ground containing a mat of grass and grass roots

sward (verb)	turf (verb)
	cover (the ground) with a surface layer of grass or grass roots