ADJOIN', verb transitive [Latin adjungo, ad and jungo. See Join.]

To join or unite to; to put to, by placing in contact; to unite, by fastening together with a joint, mortise, or knot. But in these transitive senses, it is rarely used. [See Join.]

ADJOIN', verb intransitive To lie or be next to, or in contact; to be contiguous; as, a farm adjoining to the highway. This is the common use of the word, and to is often omitted; as adjoining the highway.