contention

(n) a point asserted as part of an argument
(n) a contentious speech act; a dispute where there is strong disagreement
- they were involved in a violent argument
arguing, contestation, controversy, disceptation, argument, disputation, tilt,
(n) the act of competing as for profit or a prize
- the teams were in fierce contention for first place
rivalry, competition,

arguing contestation controversy disceptation argument disputation tilt rivalry competition

cooperation