Word.ws English Dictionary

double U

double U noun: something in the shape of two U's (not of a W). Also the alternative form of double-u.

Noun

double U (plural double Us)

  1. something in the shape of two U's (not of a W)
    • In training a tree in the double U […] only the two topmost buds are allowed to grow on the trunk and two arms.1942, Playing Tricks with Plants, Popular Science, Vol. 140, No. 3 (March), p. 110

Also used as

double U is also the alternative form of double-u.

Forms of double U

pluraldouble Us

Questions about double U

What does double U mean?
Double U means something in the shape of two U's (not of a W).
What part of speech is double U?
Double U is a noun.
What is the plural of double U?
The plural of double U is double Us.

Words near double U in the dictionary

  1. double trouble
  2. double truck
  3. double trucks
  4. double turnstile
  5. double turnstiles
  6. double U
  7. double uncle
  8. double uncles
  9. double up
  10. double Us
  11. double vertical line

Source and license

Adapted from Wiktionary: double U (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: “double U.” Word.ws, https://word.ws/double_u. Based on Wiktionary, CC BY-SA 4.0.