(unstressed) Contraction of of.. / (obsolete, unstressed) Contraction of on.

(nautical) ore/oil ; designating that a ship can carry both ore and oil

Abbreviation of owned and operated.

The fifteenth letter of the English alphabet, called o and written in the Latin script.

The ordinal number fifteenth, derived from this letter of the English alphabet, called o and written in the Latin script.

(stenoscript) (a) an initial letter ⟨o⟩

The name of the Latin-script letter O. / A zero (used in reading out numbers).

(nonstandard) alternative form of O (vocative particle)

Alternative form of oh

(IRC, acronym of) Operator / (acronym of) Object, see SVO