Source : Webster's Revised Unabridged Dictionary (1913)

Exclude \Ex*clude"\, v. t. [imp. & p. p. {Excluded}; p. pr. &
   vb. n. {Excluding}.] [L. excludere, exclusum; ex out +
   claudere to shut. See {Close}.]
   1. To shut out; to hinder from entrance or admission; to
      debar from participation or enjoyment; to deprive of; to
      except; -- the opposite to admit; as, to exclude a crowd
      from a room or house; to exclude the light; to exclude one
      nation from the ports of another; to exclude a taxpayer
      from the privilege of voting.

            And none but such, from mercy I exclude. --Milton.

   2. To thrust out or eject; to expel; as, to exclude young
      animals from the womb or from eggs.

   {Excluded middle}. (logic) The name given to the third of the
      ``three logical axioms,'' so-called, namely, to that one
      which is expressed by the formula: ``Everything is either
      A or Not-A.'' no third state or condition being involved
      or allowed. See {Principle of contradiction}, under
      {Contradiction}.

Source : WordNet®

exclude
     v 1: prevent from being included or considered or accepted; "The
          bad results were excluded from the report"; "Leave off
          the top piece" [syn: {except}, {leave out}, {leave off},
           {omit}, {take out}] [ant: {include}]
     2: prevent from entering; shut out; "The trees were shutting
        out all sunlight"; "This policy excludes people who have a
        criminal record from entering the country" [syn: {keep out},
         {shut out}, {shut}] [ant: {admit}]
     3: lack or fail to include; "The cost for the trip excludes
        food and beverages" [ant: {include}]
     4: prevent from entering; keep out; "He was barred from
        membership in the club" [syn: {bar}, {debar}]
     5: put out or expel from a place; "The child was expelled from
        the classroom" [syn: {expel}, {eject}, {chuck out}, {throw
        out}, {kick out}, {turf out}, {boot out}, {turn out}]