(intransitive) To file a counterclaim.

(literally) A weight that is put in opposition to an equal weight so it keeps that in balance. / (figuratively) A force or influence that balances, checks or limits an opposite one.

(transitive) To apply weight in order to balance an opposing weight. / (transitive, figuratively) To match or equal in effect when applying opposing force

US spelling of counter-offensive

US spelling of counter-offensive

Any political or military action taken to defeat insurgency, especially during guerrilla warfare.

More of a hindrance than a help.

A spy working in counterintelligence.

(intransitive) To carry out counterespionage.

A heavy mass of often iron or concrete, mechanically linked in opposition to a load which is to be raised and lowered, with the intent of reducing the amount of work which must be done to effect the raising and lowering. Counterweights are used, for example, in cable-hauled elevators and some kinds of movable bridges (e.g. a bascule bridge).