What is the meaning of あー?

Used to denote fanatics, adepts or devotees of a certain product, artist, fashion style or famous person

A suffix or ending used to indicate the subject of an adjective, noun or nominalized verb, akin to "-man", "-er" or "person" in English.

Used to indicate the provenance of a person

A suffix attached to warabi-naa (Okinawan traditional given name) of samuree (Ryukyuan aristocracy) to indicate the name of hyakushoo (Ryukyuan commoner).

A suffix attached to words for animals. Sometimes, the original, non-suffixed form is not used.

: bubble

安和: Awa

あー: oh! ah! (voice you make when you feel deeply about something)

Source: wiktionary.org