See also: Fourth


English Wikipedia has an article on:
English numbers (edit)
[a], [b] ←  3 4 5  → [a], [b]
    Cardinal: four
    Ordinal: fourth, tetarto-
    Latinate ordinal: quartary, quaternary
    Multiplier: quadruple, fourfold
    Distributive: quadruply
    Collective: tetrad, foursome
    Fractional: quarter, fourth
    Number of musicians: quartet


From Middle English fourthe, an alteration (due to four) of ferthe, from Old English fēorþa, fēowerþa, from Proto-West Germanic *feurþō, from Proto-Germanic *fedurþô, equivalent to four +‎ -th.



fourth (not comparable)

  1. The ordinal form of the number four.
    • 2013 June 29, Leo Montada, “Coping with Life Stress”, in Herman Steensma; Riël Vermunt, editors, Social Justice in Human Relations Volume 2: Societal and Psychological Consequences of Justice and Injustice[1], Springer Science & Business Media, →ISBN, page 26:
      The fourth model is called the enlightment model: Actors are seen to be responsible for problems but unable or unwilling to provide solutions. They are believed to need discipline provided by authoritative guidance. The Alcoholic Anonymous[sic] groups are considered prototypical for this model.

Usage notesEdit

Abbreviations: 4th, 4th, IVth, IIIIth; (in names of monarchs and popes, and formal names in English) IV, IV.

Derived termsEdit



fourth (plural fourths)

  1. (not used in the plural) The person or thing in the fourth position.
  2. (chiefly American) A quarter, one of four equal parts of a whole.
  3. (not used in the plural) The fourth gear of an engine.
  4. (music) A musical interval which spans four degrees of the diatonic scale, for example C to F (C D E F).


Derived termsEdit


Middle EnglishEdit



  1. Alternative form of ferthe