The Collaborative International Dictionary of English v.0.48:

Admit \Ad*mit"\, v. t. [imp. & p. p. Admitted; p. pr. & vb. n.
   Admitting.] [OE. amitten, L. admittere, admissum; ad +
   mittere to send: cf. F. admettre, OF. admettre, OF. ametre.
   See Missile.]
   1. To suffer to enter; to grant entrance, whether into a
      place, or into the mind, or consideration; to receive; to
      take; as, they were into his house; to admit a serious
      thought into the mind; to admit evidence in the trial of a
      cause.
      [1913 Webster]

   2. To give a right of entrance; as, a ticket admits one into
      a playhouse.
      [1913 Webster]

   3. To allow (one) to enter on an office or to enjoy a
      privilege; to recognize as qualified for a franchise; as,
      to admit an attorney to practice law; the prisoner was
      admitted to bail.
      [1913 Webster]

   4. To concede as true; to acknowledge or assent to, as an
      allegation which it is impossible to deny; to own or
      confess; as, the argument or fact is admitted; he admitted
      his guilt.
      [1913 Webster]

   5. To be capable of; to permit; as, the words do not admit
      such a construction. In this sense, of may be used after
      the verb, or may be omitted.
      [1913 Webster]

            Both Houses declared that they could admit of no
            treaty with the king.                 --Hume.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Admitted \Ad*mit"ted\, a.
   Received as true or valid; acknowledged.

Moby Thesaurus II by Grady Ward, 1.0:

87 Moby Thesaurus words for "admitted":
   accepted, acclaimed, acknowledged, admired, advocated, affirmed,
   allowed, applauded, approved, authenticated, avowed, backed,
   being done, certified, comme il faut, conceded, confessed,
   confirmed, conformable, conventional, correct, countersigned,
   cried up, customary, de rigueur, decent, decorous, endorsed,
   established, favored, favorite, fixed, folk, formal, granted,
   hallowed, handed down, heroic, highly touted, hoary, immemorial,
   in good odor, inveterate, legendary, long-established,
   long-standing, meet, mythological, notarized, of long standing,
   of the folk, on sufferance, oral, orthodox, permitted, popular,
   prescriptive, professed, proper, ratified, received, recognized,
   recommended, right, rooted, sealed, seemly, signed, stamped,
   supported, sworn and affirmed, sworn to, time-honored, tolerated,
   traditional, tried and true, true-blue, understood, underwritten,
   unforbidden, unprohibited, unwritten, validated, venerable,
   warranted, well-thought-of, worshipful