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