Main Entry:

ad·join

Pronunciation:

\ə-ˈjȯin, a-\

Function:

verb

Etymology:

Middle English, from Anglo-French ajoindre, from Latin adjungere, from ad- + jungere to join — more at yoke

Date:

14th century

transitive verb 1 : to add or attach by joining 2 : to lie next to or in contact with intransitive verb : to be close to or in contact with one another