sward vs sod

sward and sod both are nouns.

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

As nouns, sward and sod are synonyms defined as:

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

Other synonyms of sward include greensward, turf.

sward (noun)	sod (noun)
surface layer of ground containing a mat of grass and grass roots	surface layer of ground containing a mat of grass and grass roots
	someone who engages in anal copulation (especially a male who engages in anal copulation with another male)
	an informal term for a youth or man

sward (verb)	sod (verb)
	cover with sod