The Collaborative International Dictionary of English v.0.48:

Supervise \Su`per*vise"\, v. t. [imp. & p. p. Supervised; p.
   pr. & vb. n. Supervising.] [Pref. super- + L. visere to
   look at attentively, to view, surely, intens. from videre,
   visum, to see. Cf. Survise, and Survey.]
   1. To oversee for direction; to superintend; to inspect with
      authority; as, to supervise the construction of a steam
      engine, or the printing of a book.
      [1913 Webster]

   2. To look over so as to read; to peruse. [Obs.] --Shak.
      [1913 Webster]

   Syn: See Superintend.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Supervise \Su`per*vise"\, n.
   Supervision; inspection. [Obs.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

supervise
    v 1: watch and direct; "Who is overseeing this project?" [syn:
         oversee, supervise, superintend, manage]
    2: keep tabs on; keep an eye on; keep under surveillance; "we
       are monitoring the air quality"; "the police monitor the
       suspect's moves" [syn: monitor, supervise]

Moby Thesaurus II by Grady Ward, 1.0:

46 Moby Thesaurus words for "supervise":
   administer, administrate, be master, boss, captain,
   carry authority, chair, chaperon, command, conduct, control,
   crack the whip, direct, discipline, dominate, govern, guide,
   handle, have clout, have power, have the power, have the right,
   have the say, head, keep in order, lead, manage, monitor, officer,
   overlook, oversee, possess authority, preside over, proctor,
   quarterback, regulate, ride herd on, rule, run, stand over, steer,
   superintend, survey, take care of, watch over, wield authority