Other forms: negations
A negation is a refusal or denial of something. If your friend thinks you owe him five dollars and you say that you don’t, your statement is a negation.
A negation is a statement that cancels out or denies another statement or action. "I didn't kill the butler" could be a negation, along with "I don't know where the treasure is." The act of saying one of these statements is also a negation. Some negations can be good news, like “No, you don’t have a cavity” or “No, that report isn’t due today.”