YAML in English dictionary YAML Meanings and definitions of "YAML" (computing) A retronym for YAML Ain't Markup Language that meant originally Yet Another Markup Language proper (computer languages) A human-readable data serialization format that takes concepts from XML and from various programming languages. A human friendly data serialization standard for all programming languages. more Sample sentences with "YAML" Declension Stem Try again Available translations Finnish French German Japanese Polish Portuguese Spanish Swedish Authors