(informal) A woman who is romantically involved with someone (usually a man) already in a committed relationship with another woman, especially a woman having an affair with a married man.

Alternative spelling of otherworldly

(idiomatic, euphemistic, usually humorous) The glans of the penis.

(idiomatic, usually preceded by the and sometimes capitalized) The afterlife, as a supernatural realm inhabited by spirits of deceased people.

(euphemistic) The state of having never participated in anal sex.

At other times; on other occasions.

Alternative form of A. N. Other

Alternative form of other side

plural of other half

(idiomatic) Except, besides. / (idiomatic) Otherwise than; in any other way than, for any other reason than, etc.