The Collaborative International Dictionary of English v.0.48:

Scout \Scout\, v. t. [imp. & p. p. Scouted; p. pr. & vb. n.
   Scouting.]
   1. To observe, watch, or look for, as a scout; to follow for
      the purpose of observation, as a scout.
      [1913 Webster]

            Take more men,
            And scout him round.                  --Beau. & Fl.
      [1913 Webster]

   2. To pass over or through, as a scout; to reconnoiter; as,
      to scout a country.
      [1913 Webster]

WordNet (r) 3.0 (2006):

scouting
    n 1: exploring in order to gain information; "scouting in enemy
         territory is very dangerous" [syn: scouting, exploratory
         survey, reconnoitering, reconnoitring]

Moby Thesaurus II by Grady Ward, 1.0:

44 Moby Thesaurus words for "scouting":
   abjuration, abjurement, chucking, chucking out, contempt,
   contradiction, declination, declining, denial, despisal, despising,
   disapproval, discard, disclamation, discounting, dismissal,
   disownment, disregard, exception, exclusion, exploration, ignoring,
   nonacceptance, nonapproval, nonconsideration, passing by,
   putting away, putting out, rebuff, recantation, recce, recco,
   recon, reconnaissance, reconnoiter, reconnoitering, refusal,
   rejection, renouncement, repudiation, repulse, spurning,
   throwing out, turning out