Ư

Ư (lowercase ư) is one of the 12 Vietnamese language vowels.^[1] It represents the Vietnamese sound [ɨ].

Quick Facts U with horn, Usage ...

U with horn
Ư ư
U+, U*
Usage
Writing system	Latin script
Type	alphabetic
Language of origin	Vietnamese
Sound values	[ɨ] [ɯ]
History
Development	U u Ư ư
Sisters	Ừừ, Ứứ, Ửử, Ữữ, Ựự
Variations	U+, U*
Other
Writing direction	Left to Right
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.

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As with most special Vietnamese letters, this letter is not well-supported by fonts and is often typed as either ⟨u+⟩ or ⟨u*⟩. The VIQR standard is ⟨u+⟩.

On the Windows default Vietnamese keyboard Ư can be found on where the [ key is on a US English keyboard layout.

Because Vietnamese is a tonal language this letter may optionally have any one of the five tonal symbols above or below it.

• Ừ ừ
• Ứ ứ
• Ử ử
• Ữ ữ
• Ự ự

Ơ and Ư were in the past used for Thai Romanization, Ơ being removed in the 1939 system and Ư lasting up until the 1968 system. Both are now written with digraphs, oe and ue.