subunit

S1U1B3U1N1I1T1
UK/sʌbˈjuːnɪt/

noun

Any subdivision of a larger unit.

Similar
fractional monetary unit
CommonScrabble 9

Meanings

nounsubunit (plural subunits)

plural subunits

  1. Any subdivision of a larger unit.

    The bogies are built up of welded sub-units which are stress-relieved before assembly by riveting.

    1961 October, “New Metropolitan Line train sets enter service”, in Trains Illustrated, page 622
    2 more examples

    Interchange manipulation comparisons showed that all subunits are still active, if at slightly lower rates.

    2007 September 25, Bungie, Halo 3, Microsoft Game Studios, Xbox 360, level/area: Terminal Three (Legendary)

    UMISEA is a subunit in Hololive featuring idols with nautical themes. The group debuted in 2021 as the first JP+EN collab subunit. Chloe was added to the roster after holox debuted.

    2023 August 14, Brandon Lyttle, “Hololive group UMISEA releases new single Ocean Wave Party☆Live”, in Niche Gamer, archived from the original on 26 Sep 2023
  2. biochemistryA protein subunit.

Synonyms & antonyms

nouna monetary unit that is valued at a fraction (usually one hundredth) of the basic monetary unit

Similar
fractional monetary unit

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*upó
  2. Proto-Italic*supo
  3. Latinsub
  4. Latinsub-
  5. Englishsub-
  6. Englishunit
  7. Englishsubunit

From sub- + unit.

Full word history & related roots →

Translations

Catalan subunitat
  • subunitatsubdivision of a larger unit
Finnish alayksikkö, aliyksikkö
  • alayksikkösubdivision of a larger unit
  • aliyksikkösubdivision of a larger unit
Polish podjednostka
  • podjednostkasubdivision of a larger unit
Portuguese subunidade
  • subunidadesubdivision of a larger unit
Russian субъедини́ца
  • субъедини́ца (subʺjediníca)subdivision of a larger unit
Cite this entry
APA

subunit. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/subunit

MLA

“subunit.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/subunit. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “subunit,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/subunit.

Source: subunit on Wiktionary, CC BY-SA 4.0.