1.  adjoin(v = verb.contact) abut, border, butt, butt against, butt on, edge, march - lie adjacent to another or share a boundary; "Canada adjoins the U.S."; "England marches with Scotland"
is one way to adjoin, contact, meet, touch
Sample sentences: Something ----s something

2.  adjoin(v = verb.contact) contact, meet, touch - be in direct physical contact with; make contact; "The two buildings touch"; "Their hands touched"; "The wire must not contact the metal cover"; "The surfaces contact at this point"
Derived forms noun adjunction₁, adjective adjunctive₁
Sample sentences: Our properties adjoin at this point; His fields adjoin mine at this point

3.  adjoin(v = verb.change) - attach or add; "I adjoin a copy of your my lawyer's letter"
is one way to add
Sample sentences: Somebody ----s something

   To join or unite to; to lie contiguous to; to be in contact with; to attach; to append. [1913 Webster]
"Corrections . . . should be, as remarks, adjoined by way of note." [1913 Webster]

1.  To lie or be next, or in contact; to be contiguous; as, the houses adjoin. [1913 Webster]
" The construction with to, on, or with is obsolete or obsolescent." [1913 Webster]
"When one man's land adjoins to another's." [1913 Webster]

2.  To join one's self. [1913 Webster]
"She lightly unto him adjoined side to side." [1913 Webster]

adjoin, v.tr.
1 be next to and joined with.
2 archaic = ADD 1.

Etymology:
ME f. OF ajoindre, ajoign- f. L adjungere adjunct- (as AD-, jungere join)

VB  be near, adjoin, hang about, trench on, border upon, verge upon, stand by, approximate, tread on the heels of, cling to, clasp, hug, huddle, hang upon the skirts of, hover over, burn, touch, bring near, draw near, converge, crowd, place side by side.

VB  be contiguous, join, adjoin, abut on, march with, graze, touch, meet, osculate, come in contact, coincide, coexist, adhere, juxtapose, contact, join (unite), link (vinculum).