Word.ws English Dictionary

u/s

u/s is the abbreviation of unserviceable.

u/s is the abbreviation of understudy.

u/s is the abbreviation of ultrasound.

Meaning of unserviceable

Adjective

unserviceable (not comparable)

  1. Unusable; of no use.
    • And that which was most to our disaduantage, the one halfe part of the men of euerie shippe sicke, and vtterly vnseruiceable.1591, Walter Raleigh, A Report of the Truth of the Fight about the Iles of Açores, this last Sommer betwixt the Reuenge, one of her Maiesties Shippes, and an Armada of the King of Spaine, London...
    Synonyms:
    u/s
  2. Of machinery, etc.: not working.
    • During 1936, revealed Pravda, the Gorky plant set itself the task of turning out 12,000 cars. The actual output was 2,500. In one day 24 of 47 cars turned out were tagged “unserviceable.”1937 January 25, “Hornlessness”, in Time
  3. Impractical.

Meaning of understudy

Noun

understudy (plural understudies)

  1. A performer who understudies; a standby for a study.
    • For Wynne-Edwards, the role of the outcasts in the welfare of the group is to wait in the wings as understudies, ready to step into the shoes of any territory holder who dies on the main stage of group reproduction.1976, Richard Dawkins, The Selfish Gene, Kindle edition, OUP Oxford, published 2016, pages 153–154
    Synonyms:
    standby

See all 4 meanings of understudy

Adjective capitalized: U/S

U/S (not comparable)

  1. (abbreviation) Abbreviation of unserviceable or unfit for service (World War II).

Noun capitalized: U/S

U/S

  1. (abbreviation) Abbreviation of ultrasound.

Questions about u/s

What is u/s the abbreviation of?
U/s is the abbreviation of unserviceable.
What part of speech is u/s?
U/s can be an adjective or a noun.

Words near u/s in the dictionary

  1. U.S.S.R.
  2. U.S.T.A.
  3. U.S.V.I.
  4. U/A
  5. u/c
  6. u/s
  7. U18
  8. U18s
  9. u2
  10. U2F
  11. U2U

Source and license

Adapted from Wiktionary: u/s (page history and authors); U/S (page history and authors); unserviceable (page history and authors); understudy (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “u/s.” Word.ws, https://word.ws/u%2Fs. Based on Wiktionary, CC BY-SA 4.0.