Having a length and width that are different; not square or circular. / Roughly rectangular or elliptical.

Something with an oblong shape. / A rectangle with length and width that are different. / An ellipse with minor and major axes that are different.

(usually followed by to or of) Lacking awareness; unmindful; unaware, unconscious of. / Failing to remember; forgetful.

The state of forgetting completely, of being oblivious, unconscious, unaware, as when sleeping, drunk, or dead.

(transitive) To consign to oblivion; to efface utterly.

The total destruction of something. / The cancellation, erasure or deletion of something.

Happy and ready to do favours for others.

present participle of oblige

The imposition of an obligation.

(transitive) To constrain someone by force or by social, moral or legal means. / (transitive, intransitive) To do (someone) a service or favour (hence, originally, creating an obligation).