O
Ordinal indicator
Octonion
Fraktur
Enclosed Alphanumeric Supplement
Unicode subscripts and superscripts
Enclosed Alphanumerics
Ö
Ɵ
Õ
Ó
Ò
Open-mid back rounded vowel
Ø
Ǫ
Oʻ
Ơ
Ǫ́
O͘
Ꝍ
Breve
Inverted breve
Mid back rounded vowel
Open O
O'
ⱺ
Macron (diacritic)
Dot (diacritic)
Mid front rounded vowel
Nasal vowel
Mid central vowel
Double grave accent
Bilabial click
Hook above
Ogonek
Vietnamese alphabet
Finno-Ugric transcription
Circumflex
R-colored vowel
Shift Out and Shift In characters
Double acute accent
Ring (diacritic)
Livonian language
Diethyl ether
Scribal abbreviation
Cedilla
International Phonetic Alphabet
Nasal bilabial click
Small caps
Caron
O,O′-Diacetyldopamine
P&O
O visa
O,O′-Dipivaloyldopamine
O-methylated flavonoid
O (disambiguation)
O Antiphons
O-GlcNAc
O A e o Z
Douglas O-38
O-Acetylbufotenine
O class
Pui O
O line
O lucenti, o sereni occhi
O series
Tai O
Big O
Ping-O-Tronic
O. Henry Award
Big O notation
O Come, O Come, Emmanuel
O-Pivalylbufotenine
O-ring
Haplogroup O-M119
Yeshe-Ö
O Tannenbaum
O (Cyrillic)
Ó Paí, Ó
O Tempo e o Vento
P&O Cruises
O-type star
O le Ao o le Malo
P&O Princess Cruises
Isoflavone-7-O-beta-glucoside 6"-O-malonyltransferase
O-linked glycosylation
Daddy-O
O-demethylpuromycin O-methyltransferase
Flavonol-3-O-beta-glucoside O-malonyltransferase
Pig-hoo-o-o-o-ey
Kamen Rider Den-O + Shin-O
O-Bi, O-Ba: The End of Civilization
Ó Rothláin
Google I/O
O-Acetylserine
Ó Lochlainn
Vitexin 2"-O-rhamnoside 7-O-methyltransferase
Ó Sé
Asynchronous I/O
Cyanidin 3-O-rutinoside 5-O-glucosyltransferase
Protein O-GlcNAcase
Lycoming O-235
Delphinidin 3',5'-O-glucosyltransferase
O-type main-sequence star
Cyanidin-3-O-glucoside 2-O-glucuronosyltransferase
Anthocyanin 3-O-glucoside 6''-O-hydroxycinnamoyltransferase
Tam o' Shanter
Haplogroup O-M175
O tempora, o mores!
O (German magazine)
Anti-streptolysin O
O scale
O Silêncio Q Precede O Esporro
Cyrillic O variants
The Big O
THC-O-acetate
Haplogroup O-M268
HNLMS O 20
Subdwarf O star
Memory-mapped I/O and port-mapped I/O
W/o
O... Saya
Double-O
Handley Page Type O
Shibuya O-East
P&O Ferries
Yam O
Séamus Ó Fearghail
Jack-o'-lantern
Te Pīhopatanga o Te Upoko o Te Ika
Te o Tsunagō/Ai o Utaō
USS O-12
Lycoming O-290
USS O-7
Continental O-200
'O pere e 'o musso
Punk-O-Rama
Te Pīhopatanga o Te Manawa o Te Wheke
Domnall Ó Cuindlis
O-Bahn Busway
O-Zone
Douglas O-2
Heme O
Anthocyanin 5-O-glucoside 6'''-O-malonyltransferase
I/O scheduling
Ō clan
Páidí Ó Sé
Beta-glucogallin—tetrakisgalloylglucose O-galloyltransferase
O-aew
Jell-O Gallery
Five-O
Jell-O
Beta-glucogallin O-galloyltransferase
Man o' war
Luteolin-7-O-diglucuronide 4'-O-glucuronosyltransferase
Steve O.
O, The Oprah Magazine
Ō-yoroi
Ó hUiginn
Ádhamh Ó Cianáin
Diarmaid Ó Donnchadha
O family
Mícheál Ó Cléirigh
Antoine Ó Raifteiri
The Marquise of O
Sunn O)))
5-O-Methylmyricetin
Tseung Kwan O line
Channel I/O
Máirtín Ó Direáin
O with diaeresis (Cyrillic)
Doyle O-2 Oriole
O 12-class submarine
Soleil O
Ō Rissei
8-hydroxyfuranocoumarin 8-O-methyltransferase
Cho-Den-O series
Big O Tires
O schöner Mai!
Lycoming O-320
Ó Flaithbheartaigh
Flavanone 7-O-glucoside 2"-O-beta-L-rhamnosyltransferase
Five Pointe O
O. O. McIntyre
O with tilde (Cyrillic)
Triple-O
N-acetylneuraminate 7-O(or 9-O)-acetyltransferase
HNLMS O 24
O Ta-ryŏn
USS O-6
Yi O
Lycoming O-360
Cruise-O-Matic
Maelbrighte Ó Hussey
USS O-5
Tomás Ó Fiaich
O salutaris hostia
Lycoming O-435
T and O map
O-Desmethylangolensin