fight

[1]	contend (with) , battle , conflict (with) , encounter , war (against) , engage , clash , take up arms (against) , feud (with) , combat , bear/take up arms (against) , brawl , struggle/strive (with/against) , cross swords (with) , close (with) , come to/exchange blows (with) , go to/wage war (with/against) , joust (with) , grapple/wrestle (with) , skirmish (with) , tussle/scuffle (with/against) , box , spar , (Old-fashioned) broil
[2]	dispute , question , confront , contest , oppose , contradict , defy , confute , protest , resist , rail/struggle , against , withstand , refute , oppugn , make/take a stand against , contravene , confound
[3]	rise up , make/take a stand , struggle , take up arms
[4]	argue , dispute , bicker , quarrel , wrangle , squabble , spat , tiff , fall out (over) , have words , disagree , row , altercate , debate
[5]	fight off , repel , repulse
[6]	fight shy of , contend , struggle , avoid , keep/remain aloof from/of , keep away from
[7]	oppose , fight back , fight down , defend
[8]	struggle
[9]	crusade , press , campaign , push , agitate

[1]	battle , conflict , engagement
[2]	fighting , combat , scrap
[3]	competitiveness
[4]	battle , conflict , bout , duel , (single) combat , monomachy , one-on-one , action , warfare , clash , hostilities , war , match , struggle , engagement , meeting , encounter , contest , fighting , brawl , Donnybrook , affray , fray , fracas , disturbance , riot , row , tussle , scuffle , scrimmage , skirmish , brush , (Colloq) free-for-all , set-to , scrap , (Brit) scrum , bovver , (Slang) (US) rumble , (Old-fashioned) broil
[5]	altercation , argument , quarrel , feud , dispute , run-in , disagreement , dissension , dissidence , dissent , difference (of opinion) , squabble , bickering , spat , misunderstanding , row , discord , (Colloq) ruckus
[6]	pugnacity , mettle , militancy , belligerence , truculence , spirit , pluck , zeal , enthusiasm , zest