tillage vs tilth

tillage and tilth both are nouns.

Word	Noun	Adjective	Verb	Adverb
tillage	Yes	No	No	No
tilth	Yes	No	No	No

As nouns, tillage and tilth are synonyms defined as:

tillage and tilth: arable land that is worked by plowing and sowing and raising crops

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

tillage (noun)	tilth (noun)
the cultivation of soil for raising crops	arable land that is worked by plowing and sowing and raising crops
arable land that is worked by plowing and sowing and raising crops	the state of aggregation of soil and its condition for supporting plant growth