The Collaborative International Dictionary of English v.0.48:

Technique \Tech`nique"\, n. [F.]
   1. The method or manner of performance in any art; -- also
      called technic.
      [1913 Webster]

   2. The body of technical methods and procedures used in a
      science or craft.
      [PJC]

   3. the detailed movements used for executing an artistic
      performance; technical skill; artistic execution; as, a
      pianist's fingering technique.
      [1913 Webster +PJC]

WordNet (r) 3.0 (2006):

technique
    n 1: a practical method or art applied to some particular task
    2: skillfulness in the command of fundamentals deriving from
       practice and familiarity; "practice greatly improves
       proficiency" [syn: proficiency, technique]

Moby Thesaurus II by Grady Ward, 1.0:

150 Moby Thesaurus words for "technique":
   MO, SOP, ability, acquaintance, address, adeptness, adroitness,
   airmanship, algorithm, approach, aptitude, arrangement, art,
   artfulness, artisanship, artistry, atmosphere, attack, balance,
   bravura, brilliance, brushwork, capability, capacity, cleverness,
   color, command, competence, composition, control, coordination,
   corpus, course, craft, craftsmanship, cunning, data, datum,
   deftness, design, dexterity, dexterousness, dextrousness,
   diplomacy, draftsmanship, efficiency, experience, expertise,
   facility, facts, factual base, faculty, familiarity, fashion,
   finesse, form, genius, gift, grace, grip, grouping, guise,
   handiness, horsemanship, information, ingeniousness, ingenuity,
   intelligence, intimacy, ken, knack, know-how, knowing, knowledge,
   line, line of action, lines, manner, manner of working,
   marksmanship, mastership, mastery, means, mechanics, mechanism,
   method, methodology, mode, mode of operation, mode of procedure,
   modus, modus operandi, order, painterliness, performance,
   perspective, practical ability, practical knowledge, practice,
   private knowledge, privity, procedure, proceeding, process,
   proficiency, prowess, quickness, ratio cognoscendi, readiness,
   resource, resourcefulness, routine, savoir-faire, savvy, science,
   seamanship, self-knowledge, shading, shadow, skill, skillfulness,
   standard operating procedure, style, system, tack, tact,
   tactfulness, talent, technic, technical brilliance,
   technical know-how, technical knowledge, technical mastery,
   technical skill, technics, technology, the drill, the how,
   the way of, timing, tone, touch, treatment, values, virtuosity,
   way, wise, wit, wizardry, workmanship