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