YAML
YAML is a human-readable data-serialization language widely used for configuration files and data exchange. Its current name is a Recursive acronym for “YAML Ain’t Markup Language.”
When an acronym expands to include itself — like GNU (GNU is Not Unix), PHP (PHP: Hypertext Preprocessor), and YAML (YAML Ain't Markup Language) — it's called a recursive acronym. PHP was originally Personal Home Page Tools before being redefined.
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