arguing vs contestation

arguing and contestation both are nouns.

Word	Noun	Adjective	Verb	Adverb
arguing	Yes	No	No	No
contestation	Yes	No	No	No

As nouns, arguing and contestation are synonyms defined as:

arguing and contestation: a contentious speech act; a dispute where there is strong disagreement

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

arguing (noun)	contestation (noun)
a contentious speech act; a dispute where there is strong disagreement	a contentious speech act; a dispute where there is strong disagreement