intransitive. Originally: to resist or withstand (an opponent). Later: to contend with in argument, to dispute with (also with that-clause); to…

intransitive. To make or carry on war; to fight. Now only literary. with const. against, on, †toward, upon, with.

transitive. To withstand, resist, fight against.

transitive. To strive against, oppose.

intransitive. To contend or stand in opposition; spec. to speak as defender or opponent in a debate (cf. oppose, v. 1b). Obsolete.

transitive. To wrestle physically with (an adversary). Also figurative and in figurative contexts.

figurative. (Now the most frequent use.)

intransitive. With against: to fight or act in opposition to, to resist.

transitive. To resist, to reject.

To act in antagonism to, struggle against, contend with, oppose actively. Now rare. transitive. With similar forces as subject and object.

transferred and figurative. to fight up against: to struggle against (something of overwhelming power).