contention vs disputation

contention and disputation both are nouns.

Word	Noun	Adjective	Verb	Adverb
contention	Yes	No	No	No
disputation	Yes	No	No	No

As nouns, contention and disputation are synonyms defined as:

contention and disputation: a contentious speech act; a dispute where there is strong disagreement

Other synonyms of contention include arguing, argument, contestation, controversy, disceptation, tilt.

contention (noun)	disputation (noun)
the act of competing as for profit or a prize	the formal presentation of a stated proposition and the opposition to it (usually followed by a vote)
a contentious speech act; a dispute where there is strong disagreement	a contentious speech act; a dispute where there is strong disagreement
a point asserted as part of an argument