O, Unicode subscripts and superscripts, Octonion, Fraktur, Ordinal indicator, Enclosed Alphanumeric Supplement, Enclosed Alphanumerics, Ö, Ò, Ơ, Oʻ, Ɵ, Õ, Ǫ, Open-mid back rounded vowel, Open O, O', Ó, Mid back rounded vowel, ⱺ, Ø, Inverted breve, Ǫ́, Ꝍ, Mid front rounded vowel, O͘, Bilabial click, Circumflex, Breve, Dot (diacritic), Macron (diacritic), Double acute accent, Livonian language, Cedilla, Hook above, International Phonetic Alphabet, Vietnamese alphabet, Mid central vowel, Nasal vowel, Ogonek, Double grave accent
Shift Out and Shift In characters, R-colored vowel, Finno-Ugric transcription, Diethyl ether, Ring (diacritic), Scribal abbreviation, Small caps, Nasal bilabial click, Caron, O,O′-Diacetyldopamine, P&O, O visa, O (disambiguation), O-methylated flavonoid, O,O′-Dipivaloyldopamine, O Antiphons, O-GlcNAc, O A e o Z, Douglas O-38, O-Acetylbufotenine, O class, Pui O, O line, O-Pivalylbufotenine, O series, O lucenti, o sereni occhi, Big O, O (Cyrillic), Tai O, Ping-O-Tronic, Big O notation, O. Henry Award, O Tannenbaum, O Come, O Come, Emmanuel, O-ring, Haplogroup O-M119, Ó Paí, Ó, O Tempo e o Vento, O-type star, P&O Cruises, O le Ao o le Malo, O-linked glycosylation, Flavonol-3-O-beta-glucoside O-malonyltransferase, P&O Princess Cruises, Isoflavone-7-O-beta-glucoside 6"-O-malonyltransferase, Kamen Rider Den-O + Shin-O, O-demethylpuromycin O-methyltransferase, Pig-hoo-o-o-o-ey, Ó Rothláin, O-Bi, O-Ba: The End of Civilization
O, Unicode subscripts and superscripts, Octonion, Fraktur, Ordinal indicator, Enclosed Alphanumeric Supplement, Enclosed Alphanumerics, Ö, Ò, Ơ, Oʻ, Ɵ, Õ, Ǫ, Open-mid back rounded vowel, Open O, O', Ó, Mid back rounded vowel, ⱺ, Ø, Inverted breve, Ǫ́, Ꝍ, Mid front rounded vowel, O͘, Bilabial click, Circumflex, Breve, Dot (diacritic), Macron (diacritic), Double acute accent, Livonian language, Cedilla, Hook above, International Phonetic Alphabet, Vietnamese alphabet, Mid central vowel, Nasal vowel, Ogonek, Double grave accent, Shift Out and Shift In characters, R-colored vowel, Finno-Ugric transcription, Diethyl ether, Ring (diacritic), Scribal abbreviation, Small caps, Nasal bilabial click, Caron, O,O′-Diacetyldopamine, P&O, O visa, O (disambiguation), O-methylated flavonoid, O,O′-Dipivaloyldopamine, O Antiphons, O-GlcNAc, O A e o Z, Douglas O-38, O-Acetylbufotenine, O class, Pui O, O line, O-Pivalylbufotenine, O series, O lucenti, o sereni occhi, Big O, O (Cyrillic), Tai O, Ping-O-Tronic, Big O notation, O. Henry Award, O Tannenbaum, O Come, O Come, Emmanuel, O-ring, Haplogroup O-M119, Ó Paí, Ó, O Tempo e o Vento, O-type star, P&O Cruises, O le Ao o le Malo, O-linked glycosylation, Flavonol-3-O-beta-glucoside O-malonyltransferase, P&O Princess Cruises, Isoflavone-7-O-beta-glucoside 6"-O-malonyltransferase, Kamen Rider Den-O + Shin-O, O-demethylpuromycin O-methyltransferase, Pig-hoo-o-o-o-ey, Ó Rothláin, O-Bi, O-Ba: The End of Civilization, Google I/O, Daddy-O, O-Acetylserine, Vitexin 2"-O-rhamnoside 7-O-methyltransferase, Ó Sé, Ó Lochlainn, Cyanidin 3-O-rutinoside 5-O-glucosyltransferase, Protein O-GlcNAcase, Delphinidin 3',5'-O-glucosyltransferase, O-type main-sequence star, Asynchronous I/O, Lycoming O-235, Cyanidin-3-O-glucoside 2-O-glucuronosyltransferase, Tam o' Shanter, Anti-streptolysin O, Haplogroup O-M175, O (German magazine), HNLMS O 20, Anthocyanin 3-O-glucoside 6''-O-hydroxycinnamoyltransferase, O scale, Cyrillic O variants, The Big O, Yeshe-Ö, Memory-mapped I/O and port-mapped I/O, THC-O-acetate, Jack-o'-lantern, Séamus Ó Fearghail, Handley Page Type O, W/o, O tempora, o mores!, P&O Ferries, Shibuya O-East, O Silêncio Q Precede O Esporro, USS O-12, Subdwarf O star, O... Saya, Te Pīhopatanga o Te Upoko o Te Ika, Double-O, Yam O, Bit-O-Honey, Te o Tsunagō/Ai o Utaō, Continental O-200, Domnall Ó Cuindlis, Lycoming O-290, I/O scheduling, Douglas O-2, O‑Level, Punk-O-Rama, Heme O, 'O pere e 'o musso, Anthocyanin 5-O-glucoside 6'''-O-malonyltransferase, O-Bahn Busway, Beta-glucogallin O-galloyltransferase, Te Pīhopatanga o Te Manawa o Te Wheke, O-Zone, Man o' war, USS O-7, O, The Oprah Magazine, Páidí Ó Sé, O-aew