- ah [ a ] interjection1. ) used for showing that you see or understand something:Have you seen Jackie? Ah, there she is.Ah yes, I remember now.2. ) used for expressing a feeling, for example for showing that you are interested, surprised, pleased, or annoyed:I'm afraid I won't be able to do the work. Ah, I see.
Usage of the words and phrases in modern English. 2013.