The third letter of the English alphabet, called cee and written in the Latin script.
The middle tone in either one of the sets of seven white keys on a keyboard or a set of seven strings on a stringed instrument.
The fifteenth letter of the English alphabet, called o and written in the Latin script.
Over
A zero (used in reading out numbers).
Operator
The name of the Latin-script letter O/o.
Object, see SVO