The Collaborative International Dictionary of English v.0.48:

Freelance \Free"lance`\ (fr[=e]"l[a^]ns`), n.
   1. a person who acts independently or without authorization
      of an organization or of his superiors.
      [PJC]

   2. a person who pursues a profession independently, and not
      as the employee of an organization; -- used especially of
      writers or photographers who sell their work to
      organizations of which they are not employees.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Freelance \Free"lance`\ (fr[=e]"l[a^]ns`), a.
   of or pertaining to a freelance[2]; as, a freelance
   photographer.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

free-lance \free-lance\ v. i.
   to work on a free-lance basis; to work as a freelancer.

   Syn: freelance.
        [WordNet 1.5] freelancer

WordNet (r) 3.0 (2006):

freelance
    adj 1: working for yourself [syn: freelance, free-lance,
           self-employed] [ant: salaried]
    2: serving for wages in a foreign army; "mercenary killers"
       [syn: mercenary(a), free-lance(a), freelance(a)]
    n 1: a writer or artist who sells services to different
         employers without a long-term contract with any of them
         [syn: freelancer, freelance, free-lance, free
         lance, independent, self-employed person]
    v 1: work independently and on temporary contracts rather than
         for a long-term employer