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1. Become professional or proceed in a professional manner or in an activity for pay or as a means of livelihood
   - professionalise [Brit]
    
2. Make professional or give a professional character to
   "Philosophy has not always been professionalized and used to be a subject pursued only by amateurs"
   - professionalise [Brit]

Derived forms: professionalized, professionalizes, professionalizing

See also: professionalization

Type of: alter, change, modify