Definitionen
1.NounThe act of negating something.
2.NounA denial or contradiction.
3.NounA proposition which is the contradictory of another proposition and which can be obtained from that other proposition by the appropriately placed addition, or insertion, of the word "not". (Or, in symbolic logic, by prepending that proposition with the symbol for the logical operator "not".)
4.NounThe logical operation which obtains such (negated) propositions.
5.NounA negative particle; a word, particularly an adverb, with a negative meaning: for instance, no and not in English, nōn, haud and nē in Latin, οὐ and μή in ancient Greek.