oxygen, O, atomic number 8(noun)
a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
the 15th letter of the Roman alphabet
O, type O, group O(noun)
the blood group whose red cells carry neither the A nor B antigens
"people with type O blood are universal donors"
A zero .
The English vocative particle, used before a pronoun or the name of a person or persons to mark direct address.
Object, see SVO
A blood type that lacks A or B antigens and may only receive transfusions of similar type O blood, but may donate to all (neglecting Rh factor). Synonym: universal donor.
American Library Association
Someone associated with Leyton Orient Football Club, as a player, coach, supporter etc.
descendant of; used to form Irish patronymic surnames.
o, the fifteenth letter of the English alphabet, derives its form, value, and name from the Greek O, through the Latin. The letter came into the Greek from the Ph/nician, which possibly derived it ultimately from the Egyptian. Etymologically, the letter o is most closely related to a, e, and u; as in E. bone, AS. ban; E. stone, AS. stan; E. broke, AS. brecan to break; E. bore, AS. beran to bear; E. dove, AS. d/fe; E. toft, tuft; tone, tune; number, F. nombre
among the ancients, O was a mark of triple time, from the notion that the ternary, or number 3, is the most perfect of numbers, and properly expressed by a circle, the most perfect figure
the letter O, or its sound
something shaped like the letter O; a circle or oval
a cipher; zero
an exclamation used in calling or directly addressing a person or personified object; also, as an emotional or impassioned exclamation expressing pain, grief, surprise, desire, fear, etc
Origin: [See One.]
O is the fifteenth letter and a vowel in the ISO basic Latin alphabet.
Chambers 20th Century Dictionary
oh, ō, interj. an exclamation of wonder, pain, desire, fear, &c. The form oh is the more usual in prose.—O hone! Och hone! an Irish exclamation of lamentation. [A.S. eá.]
usually written o', an abbrev. for of and on.
The numerical value of o in Chaldean Numerology is: 7
The numerical value of o in Pythagorean Numerology is: 6
Images & Illustrations of o
Popularity rank by frequency of use
Translations for o
From our Multilingual Translation Dictionary
Get even more translations for o »
Find a translation for the o definition in other languages:
Select another language: