• (America) IPA: /pɹəˈpɔɹʃən/
  • (RP) IPA: /pɹəˈpɔːʃən/
  • (rhotic, horse-hoarse) IPA: /pɹəˈpo(ː)ɹʃən/
  • (nonrhotic, horse-hoarse) IPA: /pɹəˈpoəʃən/


  1. (countable) A quantity of something that is part of the whole amount or number.
    • 1907, Robert William Chambers, chapter VI, in The Younger Set, New York, N.Y.: D. Appleton & Company, OCLC 24962326 ↗:
      “I don't mean all of your friends—only a small proportion—which, however, connects your circle with that deadly, idle, brainless bunch—the insolent chatterers at the opera, the gorged dowagers, the worn-out, passionless men, the enervated matrons of the summer capital, […]!”
  2. (uncountable) Harmonious relation of parts to each other or to the whole.
  3. (countable) Proper or equal share.
    • Let the women […] do the same things in their proportions and capacities.
  4. The relation of one part to another or to the whole with respect to magnitude, quantity, or degree.
    the proportion of the parts of a building, or of the body
    • The image of Christ, made after his own proportion.
    • 1820, Walter Scott, Ivanhoe; a Romance. [...] In Three Volumes, volume (please specify ), Edinburgh: Printed for Archibald Constable and Co.; London: Hurst, Robinson, and Co. […], OCLC 230694662 ↗:
  5. (mathematics, countable) A statement of equality between two ratios.
  6. (math, archaic) The "rule of three", in which three terms are given to find a fourth.
  7. (countable, chiefly, in the plural) Size.
Translations Translations Verb

proportion (proportions, present participle proportioning; past and past participle proportioned)

  1. (transitive) To divide into proper shares; to apportion.
  2. (transitive) To form symmetrically.
  3. (transitive, arts) To set or render in proportion.
  4. (transitive, archaic) To correspond to.

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