Index of English words, starting with "co"

(1) - Counteract (v. t.) To act in opposition to; to hinder, defeat, or frustrate, by contrary agency or influence; as, to counteract the effect of medicines; to counteract good advice.

(1) - Counteraction (n.) Action in opposition; hindrance resistance.

(1) - Counteractive (n.) One who, or that which, counteracts.
(2) - Counteractive (a.) Tending to counteract.