ah: Meaning and Definition of

ah

Pronunciation: (ä), [key]
— interj.
  1. (used as an exclamation of pain, surprise, pity, complaint, dislike, joy, etc., according to the manner of utterance.)

Ah

Pronunciation: [key]
  1. ampere-hour.

A.H.

Pronunciation: [key]
  1. in the year of the Hegira; since the Hegira (a.d. 622).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.