to fight or contend against; oppose vigorously

to combat crime.

to battle; contend

to combat with disease.

Military . active, armed fighting with enemy forces.

a fight, struggle, or controversy, as between two persons, teams, or ideas.

noun

accord , compromise , peace , retreat , surrender , truce

verb

agree , compromise , retreat , run , surrender

noun

action , affray , battle royal * , brush , brush-off , conflict , contest , encounter , engagement , fight , flap , fray , jackpot * , mix-up * , run-in * , service , shoot-out , skirmish , struggle , war , warfare , battle , contention , contest bout , joust , rencontre , sciamachy

verb

battle , buck , clash , contend , contest , cope , cross swords with , defy , dispute , do battle with , duel , engage , fight , go up against , oppose , put up a fight , repel , resist , shoot it out , strive , struggle , traverse , war , withstand , tilt , wrestle , action , argument , attack , bout , brush , conflict , controversy , encounter , face , fray , joust , scuffle , strife