n. Letters or words, in writing or speech, that have no meaning or seem to have no meaning.n. An untrue statement.n. Something foolish.n. A type of poetry that contains strange or surreal ideas, as, for example, that written by Edward Lear.n. A damaged DNA sequence whose products are not biologically active, that is, that does nothing.v. To make nonsense ofv. To attempt to dismiss as nonsense.v. To joke around, to waste time