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

(diacritic) Enclosed Alphanumerics Nasal bilabial click Caron O with grave (Cyrillic) O-hook O-aew O,O′-Diacetyldopamine P&O O (disambiguation) O,O′-Dipivaloyldopamine O-methylated flavonoid O visa O A e o Z O Antiphons Oly Douglas O-38 O-GlcNAc O class O line Tomás Ó Fiaich Pui O O lucenti, o sereni occhi O series Big O O. Henry Award Tai O Big O notation Ping-O-Tronic O Come, O Come, Emmanuel Yeshe-Ö O-ring O Tannenbaum Haplogroup O-M119 Ó Paí, Ó O Tempo e o Vento O le Ao o le Malo Ó Rothl

áin P&O Cruises O (Cyrillic) P&O Princess Cruises O-linked glycosylation O-type star Daddy-O O-Bi, O-Ba: The End of Civilization Pig-hoo-o-o-o-ey Flavanone 7-O-glucoside 2"-O-beta-L-rhamnosyltransferase Ō Rissei Lycoming O-320 Cho-Den-O series USS O-6 Yi O Five Pointe O Lycoming O-435 O Ta-ryŏn O schöner Mai! Ó Tomhrair O-Desmethylangolensin O gaúcho