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English numbers (edit)
[a], [b] ←  2 3 4  → [a], [b]
    Cardinal: three
    Ordinal: third, trito-
    Latinate ordinal: tertiary
    Adverbial: thrice
    Multiplier: triple, threefold
    Distributive: triply
    Collective: triad, threesome
    Fractional: third
    Number of musicians: trio, triplet


PIE word

From Middle English thirde, thridde, from Old English þridda, from Proto-Germanic *þridjô, from Pre-Germanic *tretyós, a remodeling of Proto-Indo-European *tr̥tyós.



third (not comparable)

  1. The ordinal form of the cardinal number three; Coming after the second.
    The third tree from the left is my favorite.
    • 2012 October 8, Daniel W. Patterson, The True Image: Gravestone Art and the Culture of Scotch Irish Settlers in the Pennsylvania and Carolina Backcountry[1], UNC Press Books, →ISBN, page 141:
      The second and third quarters of the shield are indecipherable on the stone but clearer in two other representations of the arms, a painted wooden funeral hatchment for Mary Davie []


Derived termsEdit



third (countable and uncountable, plural thirds)

  1. The person or thing in the third position.
    Jones came in third.
  2. One of three equal parts of a whole.
    He ate a third of the pie. Divided by two-thirds.
  3. (uncountable) The third gear of a gearbox.
    Now put it into third.
  4. (music) An interval consisting of the first and third notes in a scale.
    They sing in thirds.
  5. (baseball) third base
    The play ended with Jones standing on third.
  6. (golf) A handicap of one stroke every third hole.
  7. A third-class degree, awarded to the lowest achievers in an honours degree programme
  8. (archaic) One sixtieth of a second, i.e., the third in a series of fractional parts in a sexagesimal number system. Also formerly known as a tierce.


Related termsEdit



third (third-person singular simple present thirds, present participle thirding, simple past and past participle thirded)

  1. (informal) To agree with a proposition or statement after it has already been seconded.
  2. To divide into three equal parts.


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