[1] : The Collaborative International Dictionary of English v.0.48

undertaker \un`dertak"er\, n.
   1. one who undertakes; one who engages in any project or
      business. --beau.  fl.
      1913 webster

   2. one who stipulates or covenants to perform any work for
      another; a contractor.
      1913 webster

            to sign deputations for undertakes to furnish their
            proportions of saltpeter.             --evelyn.
      1913 webster

            in come some other undertakes, and promise us the
            same or greater wonders.              --south.
      1913 webster

   3. specifically, one who takes the charge and management of
      funerals.
      1913 webster

[2] : WordNet (r) 2.0

undertaker
     n : one whose business is the management of funerals syn: mortician,
          funeral undertaker, funeral director
see also:
mortician funeral undertaker funeral director 

Undertaker >> U Words
Undertaker, definition of term: Undertaker
undertaker_pag1.html