/ˈki:wɜ:d ||; ˈkiˌwɝd/noun[C] 1 a word that tells you about the main idea or subject of sth （表达要点或主题的）关键词: When you're studying a language, the keyword is patience. 学习语言的关键是要有恒心。
2 a word or phrase that is used to give an instruction to a computer （用于给计算机下达指令的）关键词，关键词