The Collaborative International Dictionary of English v.0.48:

Recognize \Rec"og*nize\ (r[e^]k"[o^]g*n[imac]z), v. t. [imp. &
   p. p. Recognized (r[e^]k"[o^]g*n[imac]zd); p. pr. & vb. n.
   Recognizing (r[e^]k"[o^]g*n[imac]`z[i^]ng).] [From
   Recognizance; see Cognition, and cf. Reconnoiter.]
   [Written also recognise.]
   1. To know again; to perceive the identity of, with a person
      or thing previously known; to recover or recall knowledge
      of.
      [1913 Webster]

            Speak, vassal; recognize thy sovereign queen.
                                                  --Harte.
      [1913 Webster]

   2. To avow knowledge of; to allow that one knows; to consent
      to admit, hold, or the like; to admit with a formal
      acknowledgment; as, to recognize an obligation; to
      recognize a consul.
      [1913 Webster]

   3. To acknowledge acquaintance with, as by salutation,
      bowing, or the like.
      [1913 Webster]

   4. To show appreciation of; as, to recognize services by a
      testimonial.
      [1913 Webster]

   5. To review; to reexamine. [Obs.] --South.
      [1913 Webster]

   6. To reconnoiter. [Obs.] --R. Monro.
      [1913 Webster]

   Syn: To acknowledge; avow; confess; own; allow; concede. See
        Acknowledge.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

established \established\ adj.
   1. brought about or set up or accepted; especially long and
      widely accepted; as, distrust of established authority; a
      team established as a member of a major league; enjoyed
      his prestige as an established writer; an established
      precedent; the established Church. Contrasted with
      unestablished. [Narrower terms: entrenched;
      implanted, planted, rooted; official; recognized]
      [WordNet 1.5]

   2. securely established; as, an established reputation.

   Syn: firm.
        [WordNet 1.5]

   3. settled securely and unconditionally.

   Syn: accomplished, effected.
        [WordNet 1.5]

   4. conforming with accepted standards.
      [WordNet 1.5]

   5. shown to be valid beyond a reasonable doubt; as, the
      established facts in the case.

   Syn: proved.
        [WordNet 1.5 +PJC]

   6. (Bot.) introduced from another region and persisting
      without cultivation; -- of plants.

   Syn: naturalized.
        [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

recognized
    adj 1: generally approved or compelling recognition; "several
           accepted techniques for treating the condition"; "his
           recognized superiority in this kind of work" [syn:
           accepted, recognized, recognised]
    2: provided with a secure reputation; "a recognized authority"
       [syn: recognized, recognised]