Source : Webster's Revised Unabridged Dictionary (1913)

Adhere \Ad*here"\, v. i. [imp. & p. p. {Adhered}; p. pr. & vb.
   n. {Adhering}.] [L. adhaerere, adhaesum; ad + haerere to
   stick: cf. F. adh['e]rer. See {Aghast}.]
   1. To stick fast or cleave, as a glutinous substance does; to
      become joined or united; as, wax to the finger; the lungs
      sometimes adhere to the pleura.

   2. To hold, be attached, or devoted; to remain fixed, either
      by personal union or conformity of faith, principle, or
      opinion; as, men adhere to a party, a cause, a leader, a
      church.

   3. To be consistent or coherent; to be in accordance; to
      agree. ``Nor time nor place did then adhere.'' ``Every
      thing adheres together.'' --Shak.

   Syn: To attach; stick; cleave; cling; hold

Source : WordNet®

adhere
     v 1: be compatible or in accordance with; "You must adhere to the
          rules"
     2: follow through or carry out a plan without deviation; "They
        adhered to their plan"
     3: come or be in close contact with; stick or hold together and
        resist separation; "The dress clings to her body"; "The
        label stuck to the box"; "The sushi rice grains cohere"
        [syn: {cling}, {cleave}, {stick}, {cohere}]
     4: be a devoted follower or supporter; "The residents of this
        village adhered to Catholicism"; "She sticks to her
        principles" [syn: {stick}]
     5: be loyal to; "She stood by her husband in times of trouble";
        "The friends stuck together through the war" [syn: {stand
        by}, {stick by}, {stick}]
     6: stick to firmly; "Will this wallpaper adhere to the wall?"
        [syn: {hold fast}, {bond}, {bind}, {stick}, {stick to}]