The Collaborative International Dictionary of English v.0.48:

Timber \Tim"ber\, n. [Probably the same word as timber sort of
   wood; cf. Sw. timber, LG. timmer, MHG. zimber, G. zimmer, F.
   timbre, LL. timbrium. Cf. Timmer.] (Com.)
   A certain quantity of fur skins, as of martens, ermines,
   sables, etc., packed between boards; being in some cases
   forty skins, in others one hundred and twenty; -- called also
   timmer. [Written also timbre.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Timber \Tim"ber\, n. [F. timbre. See Timbre.] (Her.)
   The crest on a coat of arms. [Written also timbre.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Timbre \Tim"bre\, n.
   See 1st Timber.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Timbre \Tim"bre\, n. [F., a bell to be struck with a hammer,
   sound, tone, stamp, crest, in OF., a timbrel. Cf. Timbrel.]
   1. (Her.) The crest on a coat of arms.
      [1913 Webster]

   2. (Mus.) The quality or tone distinguishing voices or
      instruments; tone color; clang tint; as, the timbre of the
      voice; the timbre of a violin. See Tone, and Partial
      tones, under Partial.
      [1913 Webster]

WordNet (r) 3.0 (2006):

timbre
    n 1: (music) the distinctive property of a complex sound (a
         voice or noise or musical sound); "the timbre of her
         soprano was rich and lovely"; "the muffled tones of the
         broken bell summoned them to meet" [syn: timbre,
         timber, quality, tone]