tilled land vs cultivated land

tilled land and cultivated land both are nouns.

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

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

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

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

tilled land (noun)	cultivated 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