threefold

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English[edit]

English numbers (edit)
30
[a], [b] ←  2 3 4  → [a], [b]
    Cardinal: three
    Ordinal: third
    Adverbial: thrice
    Multiplier: triple, threefold
    Distributive: triply
    Fractional: third

Etymology[edit]

From Middle English threfold, from Old English þrīfeald. Equivalent to three +‎ -fold

Pronunciation[edit]

  • (file)

Adjective[edit]

threefold (not comparable)

  1. three times as great
    • 2020 May 20, Andrew Haines talks to Stefanie Foster, “Repurpose rail for the 2020s”, in Rail, page 33:
      "We recognise that electrifying more of the railway is likely to be necessary to deliver decarbonisation," it stated.
      There's clearly a growing momentum in that direction, but some significant hurdles have still to be overcome - not least the legacy of the three-fold increase in cost on the Great Western Electrification Programme, which has become the poster project for expensive wiring.
  2. triple

Synonyms[edit]

Translations[edit]

Adverb[edit]

threefold (not comparable)

  1. by a factor of three

Synonyms[edit]

Translations[edit]

Noun[edit]

threefold (plural threefolds)

A threefold, the twisted cubic.
  1. (mathematics) An algebraic variety of degree 3.
    • 2015, Xun Yu, “McKay correspondence and new Calabi-Yau threefolds”, in (Please provide the book title or journal name)[1]:
      In this way, we find some new pairs of Hodge numbers of Calabi-Yau threefolds.

Alternative forms[edit]

  • three-fold
  • 3-fold