cultivated land vs ploughland

cultivated land and ploughland both are nouns.

Word	Noun	Adjective	Verb	Adverb
cultivated land	Yes	No	No	No
ploughland	Yes	No	No	No

As nouns, cultivated land and ploughland are synonyms defined as:

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

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

cultivated land (noun)	ploughland (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