Chinese

In Chinese pinyin ó is the yángpíng tone (阳平, high-rising tone) of "o".

Czech and Slovak

Ó is the 24th letter of the Czech alphabet and the 28th letter of the Slovak alphabet. It represents /oː/.

Dutch

In Dutch, the acute Ó accent is used to mark different meanings for words, for example voor and vóór ("for" / "before"), or vóórkomen and voorkómen ("to occur" / "to prevent").

Emilian

In Emilian, ó is used to represent [o], e.g. sótt [sotː] "dry".

Faroese

Ó is the 18th letter of the Faroese alphabet and represents /œ/ or /ɔuː/.

Hungarian

Ó is the 25th letter of the Hungarian alphabet. It represents the long vowel /oː/.

Icelandic

Ó is the 19th letter of the Icelandic alphabet and represents /oṷ/.

Irish

Ó is widely used in Irish where it has various meanings:

• the preposition ó "from"
• the patronymic term Ó "grandson, (usually male) descendant, first or second cousin" (variants: Ua, Uí, Í Uaí).^[1] When Irish names were anglicized, the Ó commonly was either dropped or written as O'.^[2][3]
• the interjection ó "oh"

Italian

In Italian, ó is an optional symbol (especially used in dictionaries) sometimes used to indicate that a stressed o should be pronounced with a close sound: córso [ˈkorso], "course", as opposed to còrso [ˈkɔrso], "Corsican" (but both are commonly written with no accent marks when the context is clear). A similar process may occur with é and è, as in *pésca, "fishing", and *pèsca "peach", in which the accent mark is not written (both are written as pesca).

Kashubian

Ó is the 23rd letter of the Kashubian alphabet and represents /o/. It also represents /u/ in southern dialects.

Kazakh

It was proposed in 2018 that Ó should be one of their Latin alphabet to replace Ө and represents /œ/ (or /ʷœ/). The proposal was modified to Ö in late 2019.

Karakalpak

Ó/ȯ is the 21rd letter of the Karakalpak alphabet and represents /ʷœ/.

Polish

Ó is the 21st letter of the Polish alphabet, and represents /u/. Historically it represented /oː/ but morphed to /u/ over time (similar to English "oo").

Portuguese

In Portuguese, ó is used to mark a stressed /ɔ/ in words whose stressed syllable is in an unpredictable location within the word, as in "pó" (dust) and "óculos" (glasses). If the location of the stressed syllable is predictable, the acute accent is not used. Ó /ɔ/ contrasts with ô /o/.

Romagnol

In Romagnol, ó is used to represent [oː], e.g. alóra [aˈloːra] "then".

Scottish Gaelic

Ó was once widely used in Scottish, but it has now been largely superseded by "ò". It can still be seen in certain writings but is no longer used in standard orthography.

Spanish

Ó is used in the Spanish language to denote an 'o' vowel with abnormal stress.

Sorbian

Ó represents /uʊ/ in Upper Sorbian and represents /ɛ/ or /ɨ/ in, especially, Lower Sorbian.

Vietnamese

In Vietnamese alphabet ó is the sắc tone (high-rising tone) of "o".

Key strokes

• Microsoft Windows users can type an "ó" by pressing Alt+0243 on the numeric pad of the keyboard.^[4] "Ó" can be typed by pressing Alt+0211
• In Microsoft Word, pressing Ctrl+' (apostrophe), then O will produce the character ó. Pressing Ctrl+' (apostrophe), then ⇧ Shift+O will produce the character Ó.^[5] Remember to not press shift before apostrophe, as that will not type this character.