From WordNet (r) 2.0 (August 2003) [wn]:
adjoin
v 1: lie adjacent to another or share a boundary; "Canada adjoins
the U.S."; "England marches with Scotland" [syn:
border, edge, abut, march, butt, {butt
against}, butt on]
2: 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" [syn: touch, meet, contact]
3: attach or add; "I adjoin a copy of your my lawyer's letter"
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Adjoin \Ad*join"\, v. t. [imp. & p. p. Adjoined; p. pr. & vb.
n. Adjoining.] [OE. ajoinen, OF. ajoindre, F. adjoindre,
fr. L. adjungere; ad + jungere to join. See Join, and cf.
Adjunct.]
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. --Watts.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Adjoin \Ad*join"\ ([a^]d*join"), v. i.
1. To lie or be next, or in contact; to be contiguous; as,
the houses adjoin.
[1913 Webster]
When one man's land adjoins to another's.
--Blackstone.
[1913 Webster]
Note: The construction with to, on, or with is obsolete or
obsolescent.
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2. To join one's self. [Obs.]
[1913 Webster]
She lightly unto him adjoined side to side.
--Spenser.
[1913 Webster]