Ah and Amen

Ah interjection - How surprising, doubtful, or unbelievable.

Amen and ah are semantically related in emphatic exclamation topic. In some cases you can use "Amen" instead a noun "Ah".

Amen noun - A primeval Egyptian personification of air and breath; worshipped especially at Thebes.

Ah and amen are semantically related in boo topic. You can use "Ah" instead a noun "Amen", if it concerns topics such as wow.