Dictionary
1o
noun, often capitalized often attributive \ˈō\
: the 15th letter of the English alphabet
: the number zero
—used as a mark at the end of a letter, an e-mail, etc., to represent a hug
plural o's or os \ˈōz\
Full Definition of O
1
a : the 15th letter of the English alphabet b : a graphic representation of this letter c : a speech counterpart of orthographic o
2
: a graphic device for reproducing the letter o
3
: one designated o especially as the 15th in order or class
4
: something shaped like the letter O; especially : zero
See o defined for English-language learners
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First Known Use of O
before 12th century
Related to O
2o
abbreviation
Definition of O
1
ocean
2
ohm
3
old
4
order
5
over
1O
Definition of O
variant of oh
2O
noun
Definition of O
: the one of the four ABO blood groups characterized by the absence of antigens designated by the letters A and B and by the presence of antibodies against these antigens
First Known Use of O
1929
Rhymes with O
beau, blow, bow, bro, Chou, crow, do, doe, dough, floe, flow, foe, fro, froe, glow, go, grow, ho, hoe, jo, Jo, joe, know, lo, low, mho, mot, mow, no, No, oh, owe, Poe, pow, pro, rho, roe, row, Rowe, schmo, sew, show, sloe, slow, snow, so, sow, stow, Stowe, strow, though, throe, throw, toe, tow, trow, whoa, woe, yo
3O
abbreviation
Definition of O
1
offense
2
Ohio
3
[New Latin octarius] pint
4O
symbol
Definition of O
oxygen
O- Defined for Kids
o
noun , often cap \ˈō\
plural o's or os \ˈōz\
O
Definition of O for Kids
variant of oh
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