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