Ah Definition

ä
interjection
Used to express various emotions, such as satisfaction, surprise, delight, dislike, or pain.
American Heritage
Used to express variously surprise, delight, regret, disgust, pain, etc.
Webster's New World
The definition of ah is a way to express emotions such as surprise, fear and disgust.
An example of ah is what someone might say when a ghost pops up in a haunted house.
YourDictionary
abbreviation
Anno Hebraico.
American Heritage
Ampere-hour.
Webster's New World
Anno Hegirae.
American Heritage
Of the Muslim era.
Webster's New World
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symbol

(metrology) Symbol for the attohenry, an SI unit of electrical inductance equal to 10−18 henrys.

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