The Collaborative International Dictionary of English v.0.48:

Inspection \In*spec"tion\, n. [L. inspectio: cf. F. inspection.]
   1. The act or process of inspecting or looking at carefully;
      a strict or prying examination; close or careful scrutiny;
      investigation. --Spenser.
      [1913 Webster]

            With narrow search, and with inspection deep,
            Considered every creature.            --Milton.
      [1913 Webster]

   2. The act of overseeing; official examination or
      superintendence.
      [1913 Webster]

   Trial by inspection (O. Eng. Law), a mode of trial in which
      the case was settled by the individual observation and
      decision of the judge upon the testimony of his own
      senses, without the intervention of a jury. --Abbott.
      [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

69 Moby Thesaurus words for "inspection":
   accounting, analysis, application, automatic electronic navigation,
   boning, brainwork, braking, checkup, computation, conning,
   contemplation, coordination, cram, cramming, drill, engrossment,
   examination, exercise, extensive study, eyeball inspection,
   fact distribution, forecasts, grind, grinding, headwork, inquest,
   inquiry, inquisition, investigation, lucubration, manipulation,
   mental labor, nonlinear calibrations, ocular inspection,
   output measurement, overhaul, overhauling, oversight, overview,
   perlustration, perusal, practice, probe, processing,
   quality control, reading, record keeping, research, restudy,
   restudying, review, run-through, scan, scrutiny, steering, study,
   studying, subject, supersonic flow detection, supervision,
   surveillance, survey, swotting, the eye, vetting, view, visitation,
   visual examination, wide reading