The fifteenth letter of the English alphabet, called o and written in the Latin script.
2
Alternative form of ο, the fifteenth letter of the Classical and Modern Greek alphabets, called omicron and (astronomy) used as an abbreviation of omicron in star names.
The system's Bayer designation is o Persei.
num
1
The fifteenth numeral symbol of the English alphabet, called o and written in the Latin script.
noun
1
The name of the Latin script letter O/o.
2
A zero (used in reading out numbers).
It is currently two-o-five in the afternoon (2:05 PM).
The first permanent English settlement in America was in Jamestown in sixteen-o-seven (1607).
Thesaurus
Synonyms
noun — a nonmetallic bivalent element that is normally a colorless
It is currently two-o-five in the afternoon (2:05 PM).
Wiktionary
03
The first permanent English settlement in America was in Jamestown in sixteen-o-seven (1607).
Wiktionary
04
I lift my soule to thee o Lord
mee, o Iehovah, heare
In thee, o Lord, I put my trust
Wiktionary
05
"Supposing somebody sees you, with all those flowers too? Supposing somebody writes him a letter? Ooooh!" (a pure round open Tamil O.)
Wiktionary
06
She was lying in the lee of a fowlhouse in a crumpled posture, as if cohesion had been detached from her joints, which lobbed her in an untidy heap, like a lot of old bones, tied together with string.
Wiktionary
Usage Notes
i Register
In some senses, o is marked as slang, historical, colloquial. Watch for register when choosing this word.