ploughland vs tilled land

ploughland and tilled land both are nouns.

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

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

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

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

ploughland (noun)	tilled land (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