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Alternative formsEdit

  • uacuus (most Latin texts use the same character for 'u' and 'v')
  • vaquus (Vulgar or Late Latin, Appendix Probi)


From vacō (I am empty, void) +‎ -uus (adjective-forming suffix).



vacuus (feminine vacua, neuter vacuum); first/second-declension adjective

  1. empty, vacant, unoccupied
    Fēmina dīxit pōculum vacuum esse.
    The woman said that the cup was empty.
    • 405 CE, Jerome, Vulgate Genesis.1.2:
      terra autem erat inanis et vacua et tenebrae super faciem abyssi et spiritus Dei ferebatur super aquas
      And the earth was void and empty, and darkness was upon the face of the deep; and the spirit of God moved over the waters.
  2. devoid or free of, without
  3. (of time) free, unoccupied


First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative vacuus vacua vacuum vacuī vacuae vacua
Genitive vacuī vacuae vacuī vacuōrum vacuārum vacuōrum
Dative vacuō vacuō vacuīs
Accusative vacuum vacuam vacuum vacuōs vacuās vacua
Ablative vacuō vacuā vacuō vacuīs
Vocative vacue vacua vacuum vacuī vacuae vacua

Derived termsEdit

Related termsEdit