threefold

English

English numbers ^(edit)

	30
[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

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

Synonyms

• (three times as great): thrissome; see also Thesaurus:threefold
• (triple): ternary, trine; see also Thesaurus:triple

Translations

three times as great

• Czech: trojnásobný (cs)
• Faroese: trífalt
• Finnish: kolminkertainen (fi)
• French: trois fois plus grand
• Georgian: სამმაგი (sammagi)
• Hebrew: מְשֻׁלָּשׁ‎ (he) m (meshulásh)
• Hindi: तिगुना (hi) (tigunā), तिगना (hi) (tignā)

• Hungarian: háromszor akkora
• Irish: ^{(please verify)} trí-aonta
• Italian: triplo (it) m
• Maori: tōtoru
• Plautdietsch: dreefach
• Russian: троекра́тный (ru) m (trojekrátnyj)
• Telugu: మూడింతలు (te) (mūḍintalu)

triple

• Finnish: kolminkertainen (fi)
• French: triple (fr)
• Greek: τριπλός (el) (triplós)
• Hungarian: háromszoros (hu)
• Irish: ^{(please verify)} trí-aonta

• Italian: triplo (it) m
• Latin: triplus, triplex
• Maori: tōtoru
• Plautdietsch: dreefach
• Russian: тройно́й (ru) m (trojnój)
• Spanish: triple (es)
• Swedish: trefaldig (sv)

Adverb

threefold (not comparable)

1. by a factor of three

Synonyms

• thrice, trebly; see also Thesaurus:thrice

Translations

by a factor of three

• Czech: trojnásobně
• Finnish: kolminkertaisesti
• French: triplement (fr)
• German: dreifach (de)
• Hungarian: háromszorosan, háromszorosára

• Italian: tripletta (it) f
• Maori: tōtoru
• Polish: trzykrotnie (pl)
• Russian: троекра́тно (ru) (trojekrátno), три́жды (ru) (tríždy)
• Spanish: por triplicado

Noun

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 $(h^{1,1},\;h^{2,1})$ of Hodge numbers of Calabi-Yau threefolds.

Alternative forms

• three-fold
• 3-fold