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Verb: commence  ku'men(t)s
  1. Take the first step or steps in carrying out an action
    - get down, begin, get, start out, start, set about, set out
  2. Set in motion, cause to start
    "The Iraqis commenced hostilities";
    - begin, lead off, start
  3. Get off the ground
    "Who commenced this company?";
    - start, start up, embark on

Derived forms: commenced, commencing, commences