Used to form nouns of quality, state, or condition.

(set phrase) Eventually, at some undetermined time in the not-too-distant future.

(logic, computing) A logical connective joining two or more predicates that yields the logical value "true" when at least one of the predicates is true.

Joins two alternatives to mean either or both; indicates that inclusive or is meant where or alone might be taken to mean exclusive or.

(logic, computing) Exclusive disjunction: the use of or to indicate that of two predicates, one is true and one is false (without specifying which is which); contrasted with inclusive or, which does not imply that one must be false.

(chiefly British) ordinary, standard.

(idiomatic) A situation in which something is always either extremely abundant or in extremely short supply.

(idiomatic) All or nothing. Probably derived from "shoot duck or no dinner".

Alternative spelling of more or less

Something unspecified or indeterminate, or whose name is forgotten or immaterial.