O Enclosed Alphanumeric Supplement Octonion Fraktur Ordinal indicator Unicode subscripts and superscripts Enclosed Alphanumerics Ö Ɵ Ò Ơ Ó Õ Open-mid back rounded vowel Ǫ Open O O' Breve Ø O͘ Mid back rounded vowel Oʻ Inverted breve Ꝍ Ǫ́ Circumflex Mid front rounded vowel Bilabial click Nasal vowel Dot (diacritic) ⱺ Vietnamese alphabet Double grave accent Double acute accent Macron (diacritic) Ogonek Hook above Cedilla Finno-Ugric transcription International Phonetic Alphabet Livonian language Shift Out and Shift In characters Mid central vowel R-colored vowel Scribal abbreviation Diethyl ether Ring (diacritic) Nasal bilabial click Small caps Caron O,O′-Diacetyldopamine P&O O visa O,O′-Dipivaloyldopam…

mine O-methylated flavonoid O (disambiguation) O-GlcNAc O Antiphons O A e o Z Douglas O-38 O-Acetylbufotenine O class O line O series O lucenti, o sereni occhi Pui O Big O Tai O O. Henry Award Big O notation Ping-O-Tronic O Come, O Come, Emmanuel O-ring Haplogroup O-M119 O-Pivalylbufotenine Yeshe-Ö O Tannenbaum O (Cyrillic) O Tempo e o Vento Ó Paí, Ó P&O Cruises O-type star O le Ao o le Malo Flavanone 7-O-glucoside 2"-O-beta-L-rhamnosyltransferase Ó Flaithbheartaigh O schöner Mai! Mícheál Ó Ceallaigh Triple-O Cho-Den-O series Five Pointe O Lycoming O-360 O with tilde (Cyrillic) Big O Tires N-acetylneuraminate 7-O(or 9-O)-acetyltran

sferase O. O. McIntyre HNLMS O 24 USS O-6 Yi O O Ta-ryŏn USS O-5 Lycoming O-435 Tomás Ó Fiaich T and O map O-Desmethylangolensin O Tú o Ninguna Bit-O-Honey O 21-class submarine