“保留字”在英语中通常翻译为 "reserved word" 或 "keyword"(不过 "keyword" 更常泛指编程语言中的关键字,而 "reserved word" 强调其被语言保留、不可用作标识符的特定含义)。在计算机编程和语言规范的语境下,"reserved word" 是更准确、更专业的表达。
例如:
In this programming language, certain words are reserved words and cannot be used as variable names.(在这种编程语言中,某些词是保留字,不能用作变量名。)