抗辩

kang4 bian4

to counter accusations; to protest; to remonstrate; to retort; to plead; to demur; a plea (of not guilty); a defense (against an allegation); to enter a plea to a charge (in a law court)

辩解

bian4 jie3

to explain; to justify; to defend (a point of view etc); to provide an explanation; to try to defend oneself

辩别

bian4 bie2

to differentiate; to distinguish; to discriminate; also written 辨别

辩称

bian4 cheng1

to argue (that); to allege; to dispute; to plead (e.g. not guilty)

辩

bian4

to dispute; to debate; to argue; to discuss