include

Etymology

From Middle English includen, borrowed from Latin inclūdere (“to shut in, enclose, insert”), from in- (“in”) + claudere (“to shut”), ultimately from Proto-Indo-European *kleh₂u- (“key, hook, nail”). Doublet of enclose. Displaced native Old English belūcan (“to include,” also “to shut in”).

verb

1. To bring into a group, class, set, or total as a (new) part or member.
   I will purchase the vacation package if you will include car rental.
2. To consider as part of something; to comprehend.
   The vacation package includes car rental.
   Does this volume of Shakespeare include his sonnets?
   I was included in the invitation to the family gathering.
   up to and including page twenty-five
3. (obsolete) To enclose, confine.
   I could have here willingly ranged, but these straits wherein I am included will not permit. , New York, 2001, p.107
4. (obsolete) To conclude; to terminate.
5. (programming) To use a directive that allows the use of source code from another file.
   You have to include the strings library to use this function.

noun

1. (programming) A piece of source code or other content that is dynamically retrieved for inclusion in another item.
   In the previous lesson, you learned how to use server-side includes, which enable you to easily include snippets of web pages within other web pages. 2006, Laura Lemay, Rafe Colburn, Sams Teach Yourself Web Publishing with HTML and CSS in One Hour a Day