contestation vs arguing

contestation and arguing both are nouns.

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

As nouns, contestation and arguing are synonyms defined as:

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

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

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