threefold

English
English numbers (edit)
30
 ←  2 3 4  → 
    Cardinal: three
    Ordinal: third
    Latinate ordinal: tertiary
    Reverse order ordinal: third to last, third from last, last but two
    Latinate reverse order ordinal: antepenultimate
    Adverbial: three times, thrice
    Multiplier: threefold
    Latinate multiplier: triple
    Distributive: triply
    Group collective: trio, threesome
    Multipart collective: triplet
    Greek or Latinate collective: triad
    Greek collective prefix: tri-
    Latinate collective prefix: tri-
    Fractional: third
    Latinate fractional prefix: trient-
    Elemental: triplet
    Greek prefix: trito-
    Number of musicians: trio, triplet
    Number of years: triennium

Alternative forms
  • three-fold, 3-fold

Etymology

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

Pronunciation
  • Audio (US)(file)

Adjective

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. (clarification of this definition is needed)

Synonyms

Derived terms

Translations

Adverb

threefold (not comparable)

  1. By a factor of three.

Synonyms

Translations

Noun

threefold (plural threefolds)

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

Verb

threefold (third-person singular simple present threefolds, present participle threefolding, simple past and past participle threefolded)

  1. (transitive) To make threefold; to triple.

Translations
to make threefold; to triple — see triple
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