sine qua non

English

WOTD – 17 October 2012

Alternative forms

Etymology

Borrowed from Latin [condiciō] sine quā nōn ([condition] without which not), originated in Aristotelian expressions as legal term.

Pronunciation

  • (Received Pronunciation) IPA(key): /ˌsaɪnɪ kweɪ ˈnɒn/, /ˌsɪn(e)ɪ kwɑː ˈnəʊn/, /ˌsɪn(e)ɪ kwɑː ˈnɒn/
  • (US) IPA(key): /ˌsɪni kwɑ ˈnɑn/, /ˌsɪni kwɑ ˈnoʊn/, /ˌsaɪni kweɪ ˈnɑn/
  • Rhymes: -ɒn, -əʊn

Noun

sine qua non (plural sine qua nons or sine quibus non)

  1. An essential or indispensable element, condition, or ingredient.
    • 2000, A. Przeworski; M. Alvarez; J. Cheibub; F. Limongi, Democracy and Development, Cambridge University Press, page 34:
      [] whereas some degree of political freedom is a sine qua non condition for contestation, democracy cannot be sufficiently defined in terms of “liberties” []
    Synonym: prerequisite

Translations

Further reading


Portuguese

Etymology

Borrowed from Latin [condiciō] sine quā nōn ([condition] without which not).

Pronunciation

  • (Portugal) IPA(key): /ˈsinɨ kwɐ ˈnɔn/

Adjective

sine qua non (invariable, comparable)

  1. (of a prerequisite) indispensable
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