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.

Accents placed on the letter O —such as Ó, Ò, Ô, Õ, and Ö —change pronunciation, meaning, or grammatical emphasis. Accented O has a unique sound, and its usage varies depending on the …

O, the fourth vowel of the modern alphabet, corresponding to the Semitic ayin, which represented a breathing and not a vowel. The Semitic form may have derived from an earlier sign representing an eye.

Dec 11, 2025 · Learn the various methods and techniques to type the letter O with an accent mark (ò, ó, ô, õ, ö) using your Windows or Mac keyboard.

O definition: the fifteenth letter of the English alphabet, a vowel. See examples of O used in a sentence.

Listed below are the keyboard shortcuts or Windows Alt codes for letter O with accents. The accents on the letter O are also called accent marks, diacritics, or diacritical marks.

Set to the tune of Twinkle Twinkle Little Star, this song has been a part of almost everyone’s childhood. The Super Simple version is slowly paced allowing time for children to say each letter and to follow …

O is used to mean zero, for example when you are telling someone a phone number, or mentioning a year such as 1908.

“O'.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/o%27. Accessed 21 Jan. 2026.

Learn how to write the letter "o" with an accent and when to use the letter "o" with an accent in this article.