1. That which has significance; a sign; a token; a symbol.


  1. Signifying something; carrying meaning.
    a significant word or sound; a significant look
  2. Having a covert or hidden meaning.
  3. Having a noticeable or major effect; notable.
    That was a significant step in the right direction.
    The First World War was a significant event.
  4. Reasonably large in number or amount.
  5. Having a low probability of occurring by chance (for example, having high correlation and thus likely to be related).

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