O is an abbreviation for: Find a translation for O in other
languages: Select another language: What does O mean? - O, o(n.)
- the 15th letter of the English alphabet, a vowel. Use the
citation below to add this abbreviation to your bibliography: O
also stands for: - And Or - Contour Pattern - form O solenoid
(actuator Only, no contacts) - New Orleans, Louisiana (mint mark
on US coins) ... and 130 more »