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u

noun, often capitalized, often attributive
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\ ˈyü How to pronounce u (audio) \
plural u's or us\ ˈyüz How to pronounce u (audio) \

Definition of u

 (Entry 1 of 5)

1a : the 21st letter of the English alphabet
b : a graphic representation of this letter
c : a speech counterpart of orthographic u
2 : a graphic device for reproducing the letter u
3 : one designated u especially as the 21st in order or class
4 [abbreviation for unsatisfactory]
a : a grade rating a student's work as unsatisfactory
b : one graded or rated with a U
5 : something shaped like the letter U

u

abbreviation (1)

Definition of u (Entry 2 of 5)

1 unit
2 unsymmetrical
3 physics up (see up entry 4 sense 5)
4 upper

U

adjective
\ ˈyü How to pronounce U (audio) \

Definition of U (Entry 3 of 5)

: characteristic of the upper classes

U

abbreviation (2)

Definition of U (Entry 4 of 5)

1 unsatisfactory
2 uracil

U

symbol

Definition of U (Entry 5 of 5)

uranium
Words Starting With U Example Sentences Phrases Containing u Learn More About u

Words Starting With U

Browse 8,266 words and phrases that start with the letter U, from uakari to Uzbek.

Examples of u in a Sentence

Noun There are three u's in “unusual.” a word that starts with u

First Known Use of u

Noun

before the 12th century, in the meaning defined at sense 1a

Adjective

1954, in the meaning defined above

History and Etymology for u

Adjective

upper class

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Time Traveler for u

Time Traveler

The first known use of u was before the 12th century

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Dictionary Entries Near u

Tzutuhil

u

U

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Statistics for u

Last Updated

15 Apr 2022

Cite this Entry

“U.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/u. Accessed 26 May. 2022.

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More Definitions for u

u

noun, often capitalized
\ ˈyü \
plural u's or us\ ˈyüz \

Kids Definition of u

1 : the 21st letter of the English alphabet
2 : a grade rating a student's work as unsatisfactory

U

abbreviation

Medical Definition of U

 (Entry 1 of 2)

uracil

U

symbol

Medical Definition of U (Entry 2 of 2)

uranium

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