The Collaborative International Dictionary of English v.0.48:

Denote \De*note"\, v. t. [imp. & p. p. Denoted; p. pr. & vb.
   n. Denoting.] [L. denotare; de- + notare to mark, nota
   mark, sign, note: cf. F. d['e]noter. See Note.]
   1. To mark out plainly; to signify by a visible sign; to
      serve as the sign or name of; to indicate; to point out;
      as, the hands of the clock denote the hour.
      [1913 Webster]

            The better to denote her to the doctor. --Shak.
      [1913 Webster]

   2. To be the sign of; to betoken; to signify; to mean.
      [1913 Webster]

            A general expression to denote wickedness of every
            sort.                                 --Gilpin.
      [1913 Webster]

WordNet (r) 3.0 (2006):

denote
    v 1: be a sign or indication of; "Her smile denoted that she
         agreed"
    2: have as a meaning; "`multi-' denotes `many' " [syn: denote,
       refer]
    3: make known; make an announcement; "She denoted her feelings
       clearly" [syn: announce, denote]

Moby Thesaurus II by Grady Ward, 1.0:

81 Moby Thesaurus words for "denote":
   add up to, advert to, allude to, announce, approve, argue, attest,
   be construed as, be indicative of, be significant of,
   be symptomatic of, be taken as, bespeak, betoken, breathe,
   characterize, connote, demonstrate, denominate, designate,
   differentiate, disclose, display, distinguish, emblematize, entail,
   evidence, evince, exhibit, express, figure, finger,
   furnish evidence, give evidence, give indication of, give token,
   go to show, highlight, hint, identify, illustrate, imply, import,
   indicate, insinuate, intend, involve, manifest, mark, mean, name,
   note, pick out, point at, point out, point to, prove, refer to,
   represent, reveal, select, set forth, show, show signs of,
   signalize, signify, speak for itself, speak volumes, specify,
   spell, stand for, stigmatize, suggest, symbol, symbolize,
   symptomatize, symptomize, tell, tend to show, testify, typify