A kind of crimped hose clip over a barbed spigot, used with gas hoses in oxyfuel welding and cutting.

(aviation, abbreviation) origin and destination

(rare) A form of the letter o modified by the addition of a diacritical “tail”: ⟨ǫ⟩, used in Old Norse.

A form of obsessive-compulsive disorder mainly characterised by obsessive thoughts, with few observable compulsions.

(India) Initialism of daughter of.

Informal form of of course.

(linguistics) The vowel sound, /ɒ/, in the words "top" and "dot".

(linguistics) The vowel sound /əʊ/, as in the words "cone" and "note".

(computing) Alternative form of ORM

plural of O clip