O

This article is about the letter of the alphabet. For the number zero, see 0. For other uses, see O (disambiguation).
For technical reasons, ":O" redirects here. For the keyboard symbol, see List of emoticons.
O
O o
Usage
Writing systemLatin script
TypeAlphabetic
Language of originLatin language
Sound values
In UnicodeU+004F, U+006F
Alphabetical position15
History
Development
Time period~−700 to present
Descendants
Sisters
Other
Associated graphso(x)
Writing directionLeft-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.
O
ISO basic
Latin alphabet
AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz

O, or o, is the fifteenth letter and the fourth vowel letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is o (pronounced /ˈoʊ/), plural oes.[1]

  1. ^ "O" Oxford English Dictionary, 2nd edition (1989);Chambers-Happap, "oes" op. cit. Oes is the plural of the name of the letter. The plural of the letter itself is rendered Os, O's, os, o's.