The Collaborative International Dictionary of English v.0.48:

interweave \in`ter*weave"\, v. t. [imp. & obs. p. p.
   interwove; p. p. interwoven; p. pr. & vb. n.
   interweaving.]
   [1913 Webster]
   1. To weave together; to intermix or unite in texture or
      construction; to intertwine; as, threads of silk and
      cotton interwoven.
      [1913 Webster]

            Under the hospitable covert nigh
            Of trees thick interwoven.            --Milton.
      [1913 Webster]

   2. To intermingle; to unite intimately; to connect closely;
      as, to interweave truth with falsehood. --Dryden.
      [1913 Webster]

            Words interwove with sighs found out their way.
                                                  --Milton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

interwove \in`ter*wove"\, interwoven \in`ter*wov"en\,
   imp. & p. p. of interweave.
   [1913 Webster]

WordNet (r) 3.0 (2006):

interwoven
    adj 1: linked or locked closely together as by dovetailing [syn:
           interlacing, interlinking, interlocking,
           interwoven]

Moby Thesaurus II by Grady Ward, 1.0:

26 Moby Thesaurus words for "interwoven":
   braided, enlaced, entwined, fretted, handwoven, interknit,
   interlaced, interthreaded, intertied, intertissued, intertwined,
   knit, laced, loomed, plaited, platted, pleached, raddled, textile,
   twined, web-footed, webbed, webby, weblike, woven, wreathed