1. (n.) A violent effort or struggle to obtain, or to resist, something; contest; strife.

2. (n.) Strife in words; controversy; altercation; quarrel; dispute; as, a bone of contention.

3. (n.) Vehemence of endeavor; eagerness; ardor; zeal.

4. (n.) A point maintained in an argument, or a line of argument taken in its support; the subject matter of discussion or strife; a position taken or contended for.

Discordia Eris altercation antagonism anteposition antipathy antithesis apologetics apologia apology argument argumentation argumentative bellicose belligerence belligerent bicker bickering blood feud brawl broil bucking captious carping casuistry caviling challenge clash clashing collision combative conflict confrontation confrontment contentious contestation contradiction contraposition contrariety contrary contrast contravention contraversion controversial controversy counteraction counterworking crosscurrent crossing defense denial despitefulness difference disaccord disaffinity discord discordance discordancy disharmony disputation disputatious dispute dissension dissent dissidence disunity donnybrook donnybrook fair embroilment enmity faultfinding feud fiery fight fliting flyting fracas friction froward fuss hassle hasty hate hatred head wind hostility hotheaded hubbub hurrah imbroglio impetuous impugnation impugnment incompatibility incompatibleness inharmoniousness inharmony jangle jar litigation litigious logomachy malevolence malice malignity militant mischief negation noncooperation open conflict open quarrel opposing opposition opposure oppugnation paper war passage of arms peppery perverse polar opposition polarity polarization polemic polemical polemics posing against pugnacious quarrel quarrelsome quarrelsomeness rebutment rebuttal refusal rejection repugnance resistance rhubarb rub rumpus scrappy set-to sharp words slanging match snarl spat spite spitefulness squabble standing against strained relations strife tension tiff traversal truculent tussle undercurrent unharmoniousness unpleasantness variance vendetta verbal engagement war of words warlike words wrangle wrangling