1. [v]  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"
2. [v]  lie adjacent to another or share a boundary; "Canada adjoins the U.S."; "England marches with Scotland"

ADJOIN is a 6 letter word that starts with A.

1. \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.
         Corrections . . . should be, as remarks, adjoined by
         way of note.                             --Watts.
   

2. \Ad*join"\ ([a^]d*join"), v. i.
   1. To lie or be next, or in contact; to be contiguous; as,
      the houses adjoin.
            When one man's land adjoins to another's.
                                                  --Blackstone.
   Note: The construction with to, on, or with is obsolete or
         obsolescent.
   2. To join one's self. [Obs.]
            She lightly unto him adjoined side to side.
                                                  --Spenser.