key word

noun

Definition of key word

  1. :  a word that is a key: such asa usually keywordplay \ˈkē-ˌwərd\ :  a significant word from a title or document used especially as an index to contentb :  a word exemplifying the meaning or value of a letter or symbol

1762

First Known Use of key word

1762

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a trip made at another's expense

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