ploughland vs plowland

ploughland and plowland both are nouns.

Word	Noun	Adjective	Verb	Adverb
ploughland	Yes	No	No	No
plowland	Yes	No	No	No

As nouns, ploughland and plowland are synonyms defined as:

ploughland and plowland: arable land that is worked by plowing and sowing and raising crops

Other synonyms of ploughland include cultivated land, farmland, tillage, tilled land, tilth.

ploughland (noun)	plowland (noun)
arable land that is worked by plowing and sowing and raising crops	arable land that is worked by plowing and sowing and raising crops