O
Unicode subscripts and superscripts
Enclosed Alphanumeric Supplement
Octonion
Fraktur
Ordinal indicator
Enclosed Alphanumerics
Ö
Ǫ
Ɵ
Õ
Oʻ
Mid back rounded vowel
Ó
Ò
Ơ
Open-mid back rounded vowel
Mid front rounded vowel
ⱺ
Ꝍ
O͘
Open O
O'
Ø
Breve
Ǫ́
Macron (diacritic)
Bilabial click
Vietnamese alphabet
Inverted breve
Nasal vowel
Double grave accent
R-colored vowel
Dot (diacritic)
Double acute accent
Circumflex
Ogonek
Mid central vowel
Livonian language
Finno-Ugric transcription
Hook above
Cedilla
Scribal abbreviation
Shift Out and Shift In characters
Ring (diacritic)
International Phonetic Alphabet
Nasal bilabial click
Diethyl ether
Caron
Small caps
O,O′-Diacetyldopamine
P&O
O,O′-Dipivaloyldopamine
O visa
O-methylated flavonoid
O (disambiguation)
O Antiphons
O-GlcNAc
O A e o Z
Douglas O-38
O-Acetylbufotenine
O class
O line
Pui O
O lucenti, o sereni occhi
O series
Tai O
Big O
O Come, O Come, Emmanuel
Ping-O-Tronic
O. Henry Award
O-Pivalylbufotenine
Big O notation
Haplogroup O-M119
O-ring
Yeshe-Ö
O Tannenbaum
O (Cyrillic)
Ó Paí, Ó
O Tempo e o Vento
P&O Cruises
O le Ao o le Malo
O-type star
Isoflavone-7-O-beta-glucoside 6"-O-malonyltransferase
O-linked glycosylation
P&O Princess Cruises
O-demethylpuromycin O-methyltransferase
Flavonol-3-O-beta-glucoside O-malonyltransferase
Daddy-O
Kamen Rider Den-O + Shin-O
Ó Rothláin
Pig-hoo-o-o-o-ey
O-Bi, O-Ba: The End of Civilization
O-Acetylserine
Google I/O
Asynchronous I/O
Ó Lochlainn
Cyanidin 3-O-rutinoside 5-O-glucosyltransferase
Vitexin 2"-O-rhamnoside 7-O-methyltransferase
Protein O-GlcNAcase
Ó Sé
Lycoming O-235
O-type main-sequence star
Cyanidin-3-O-glucoside 2-O-glucuronosyltransferase
Delphinidin 3',5'-O-glucosyltransferase
Memory-mapped I/O and port-mapped I/O
Tam o' Shanter
O scale
Anti-streptolysin O
O (German magazine)
Anthocyanin 3-O-glucoside 6''-O-hydroxycinnamoyltransferase
Cyrillic O variants
HNLMS O 20
Haplogroup O-M268
Subdwarf O star
Haplogroup O-M175
Jack-o'-lantern
The Big O
THC-O-acetate
P&O Ferries
O Silêncio Q Precede O Esporro
USS O-12
Handley Page Type O
O... Saya
Double-O
Shibuya O-East
Continental O-200
O tempora, o mores!
W/o
Te Pīhopatanga o Te Upoko o Te Ika
Yam O
Lycoming O-290
Te o Tsunagō/Ai o Utaō
O-Zone
Domnall Ó Cuindlis
Séamus Ó Fearghail
Heme O
Anthocyanin 5-O-glucoside 6'''-O-malonyltransferase
Beta-glucogallin O-galloyltransferase
Te Pīhopatanga o Te Manawa o Te Wheke
I/O scheduling
USS O-7
Páidí Ó Sé
'O pere e 'o musso
Beta-glucogallin—tetrakisgalloylglucose O-galloyltransferase
O, The Oprah Magazine
Punk-O-Rama
Douglas O-2
Jell-O Gallery
O-Bahn Busway
Five-O
Luteolin-7-O-diglucuronide 4'-O-glucuronosyltransferase
O-aew
Ó hUiginn
The Marquise of O
Ō clan
Steve O.
Ádhamh Ó Cianáin
Ō-yoroi
Man o' war
Diarmaid Ó Donnchadha
Jell-O
Mícheál Ó Cléirigh
Máirtín Ó Direáin
O family
Antoine Ó Raifteiri
8-hydroxyfuranocoumarin 8-O-methyltransferase
Soleil O
Channel I/O
Tseung Kwan O line
5-O-Methylmyricetin
Flavanone 7-O-glucoside 2"-O-beta-L-rhamnosyltransferase
Doyle O-2 Oriole
Lycoming O-360
O 12-class submarine
Sunn O)))
Ō Rissei
Lycoming O-435
Five Pointe O
Triple-O
Lycoming O-320
Big O Tires
USS O-6
N-acetylneuraminate 7-O(or 9-O)-acetyltransferase
Ó Flaithbheartaigh
O schöner Mai!
Cruise-O-Matic
Tomás Ó Fiaich
O Ta-ryŏn
Cho-Den-O series
Yi O
Fionntán Ó Súilleabháin
USS O-5
O salutaris hostia
HNLMS O 24
O with tilde (Cyrillic)
Luteolin-7-O-glucuronide 2"-O-glucuronosyltransferase
Ó Tomhrair
Maelbrighte Ó Hussey
O-Desmethylangolensin