Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Words or signs having no intelligible meaning: a message that was nonsense until decoded.
  • n. Subject matter, behavior, or language that is foolish or absurd.
  • n. Extravagant foolishness or frivolity: a clown's exuberant nonsense.
  • n. Matter of little or no importance or usefulness: a chatty letter full of gossip and nonsense.
  • n. Insolent talk or behavior; impudence: wouldn't take any nonsense from the children.
  • adj. Genetics Of or relating to a mutation in a structural gene that changes a nucleotide triplet into a stop codon, thus prematurely terminating the polypeptide chain during protein synthesis.
  • interj. Used to express disagreement or exasperation.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • 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 of
  • v. To attempt to dismiss as nonsense.
  • v. To joke around, to waste time

from the GNU version of the Collaborative International Dictionary of English

  • n. That which is not sense, or has no sense; words, or language, which have no meaning, or which convey no intelligible ideas; absurdity.
  • n. Trifles; things of no importance.

from The Century Dictionary and Cyclopedia

  • n. Not sense; that which makes no sense or is lacking in sense; language or words without meaning, or conveying absurd or ridiculous ideas; absurd talk or senseless actions.
  • n. Trifles; things of no importance.
  • n. Synonyms Folly, stuff, twaddle, balderdash.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. having no intelligible meaning
  • n. a message that seems to convey no meaning
  • n. ornamental objects of no great value

Etymologies

non- +‎ sense (Wiktionary)

Examples

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