Meaning of O in English
I. O 1 BrE AmE , o /əʊ $ oʊ/ noun ( plural O’s , o’s )
1 . [uncountable and countable] the 15th letter of the English alphabet
2 . [uncountable] spoken zero:
My phone number is six o four double two (=60422) .
3 . [uncountable] a common type of blood
• • •
▪ zero the number 0. Also used when saying there is nothing at all:
A million is written as one followed by six zeros.
a temperature of zero degrees
Our chances of success are virtually zero.
▪ nil British English zero - used especially in the results of sports games:
United won the game three-nil.
In rural areas, employment opportunities are almost nil.
▪ nought British English spoken zero – used in calculations and figures:
It has increased by nought point seven five per cent (=0.75%) .
▪ O used to say the number 0 like the letter O:
The code for Oxford is 0 one eight six five (=01865) .
II. O 2 /əʊ $ oʊ/ BrE AmE interjection
[ Date: 1100-1200 ; Origin: Natural sound ]
1 . used when praying to a god or, in the past, when speaking to someone in great authority:
O Lord, in you I put my trust.
2 . another form of ↑ oh
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012