English Dictionary

guideword

noun

A watchword; a word or phrase that serves as one's guide. / (publishing) A word that is printed at the top or bottom of the page in a reference work, in order to help readers find a specific entry.

The guideword for this project is efficiency.

意味（1）

A watchword; a word or phrase that serves as one's guide.

Naturalness is perhaps the best guideword to keep in mind.

意味（2）

(publishing) A word that is printed at the top or bottom of the page in a reference work, in order to help readers find a specific entry.

Secondly, the teacher-librarian must know how to use books herself to find information — title page, table of contents, index, guidewords, etc.

意味（3）

(chiefly business) Any of the words in a memo or email that define metadata regarding the message, such as sender, recipient, and subject.

One purpose of a traditional memo or e-mail is to provide essential information quickly and easily, so there is no restriction, other than appearance or practicality, on the number or variety of guidewords you include.