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From Old Latin co(m)moinis, from Proto-Indo-European *ḱom-moy-ni-, from *mey- (to change). Cognate with Old English ġemǣne (common), related to immūnis, mūnia, mūnis, mūnus.


  • (Classical) IPA(key): /komˈmuː.nis/, [kɔmˈmuː.nɪs]
  • (file)


commūnis (neuter commūne); third declension

  1. common, ordinary, commonplace, universal
  2. of or for the community, public
  3. democratic; representing the common sentiment
  4. (of manners) familiar, accessible, courteous
  5. (grammar) having both qualities of a subdivided category, such as a verb with both an active and a passive meaning, or a syllable being either long or short.


Third declension.

Number Singular Plural
Case / Gender Masc./Fem. Neuter Masc./Fem. Neuter
Nominative commūnis commūne commūnēs commūnia
Genitive commūnis commūnis commūnium commūnium
Dative commūnī commūnī commūnibus commūnibus
Accusative commūnem commūne commūnēs, commūnīs commūnia
Ablative commūnī commūnī commūnibus commūnibus
Vocative commūnis commūne commūnēs commūnia


Derived termsEdit



  • communis in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • communis in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • communis in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
  • communis in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to considerably (in no way) further the common good: multum (nihil) ad communem utilitatem afferre
    • to accommodate something to the standard of the popular intelligence: ad intellegentiam communem or popularem accommodare aliquid
    • to express oneself in popular language: ad vulgarem sensum or ad communem opinionem orationem accommodare (Off. 2. 10. 35)
    • (ambiguous) we know from experience: usu rerum (vitae, vitae communis) edocti sumus
    • (ambiguous) unanimously: uno, communi, summo or omnium consensu (Tusc. 1. 15. 35)
    • (ambiguous) the ordinary usage of language, everyday speech: communis sermonis consuetudo
    • (ambiguous) to be always considering what people think: multum communi hominum opinioni tribuere