(formal, idiomatic) For all time, forever.

(countable) The whole duration of a being, whether human, animal, plant, or other kind, being alive.

(intransitive) To grow aged; to become old; to show marks of age. / (intransitive, informal, of a statement, prediction) To be viewed or turn out in some way after a certain time has passed.

(chiefly in compounds) Clipping of agriculture or agricultural.

(construction) Clipping of aggregate (small rocks mixed into concrete).

(South Africa) Expressing annoyance, remorse, surprise etc.; oh, ah.

(stenoscript) Abbreviation of again.

Alternative letter-case form of AG (“aggressive (butch)”)

Initialism of Attorney General. / Initialism of Auditor General. / (aviation, uncountable) Abbreviation of agricultural aviation.

Old. / (chiefly non-US) Having the age of. / Having undergone the improving effects of time; matured.