1.Definition: any evidence that helps to establish the falsity of something

Related Noun(s):disproof, falsification

Category: General

2.Definition: the act of determining that something is false

Related Noun(s):disproof, falsification, refutal

Category: General

3.Definition: the speech act of answering an attack on your assertions

"His refutation of the charges was short and persuasive", "In defense he said the other man started it"

Related Noun(s):defence, defense

Category: General