Question

acronym

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ac∙ro∙nym / ˈækrənɪm ; ˈækrənɪm /
◙noun [C]
1. a word made up from the first letters of the name of something such as an organization. For example NATO is an acronym for the North Atlantic Treaty Organization.
• 首字母缩略词〔如 NATO（北约）由 North Atlantic Treaty Organization 的首字母缩略而成〕