An exclamation expressing intense emotion such as fear, frustration, excitement, or pain. Also used in computing as a DNS record type for IPv6 addresses.
Represents the vocalization of intense emotion, with the repeated 'a' sound being one of the most basic human vocalizations. In computing, 'AAAA' stands for 'quad-A' record, named for having four A's compared to the 'A' record for IPv4 addresses.
The quadruple-A is fascinating because it demonstrates how the same letter combination can simultaneously represent the most primitive human expression (screaming) and the most advanced technology (IPv6 networking). It's also the sound test pattern that audio engineers use, making 'AAAA' possibly the most functionally diverse four-letter sequence in human communication.
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