(1):
(p. pr. & vb. n.) of Undertake
(2):
(n.) The act of one who undertakes, or engages in, any project or business.
(3):
(n.) A promise or pledge; a guarantee.
(4):
(n.) That which is undertaken; any business, work, or project which a person engages in, or attempts to perform; an enterprise.
(5):
(n.) Specifically, the business of an undertaker, or the management of funerals.