1. to make professional in character, standards, or methods; to raise to professional status or level
Usage: British spelling; American equivalent is 'professionalize'; transitive verb
2. to train or develop someone to become a professional in a particular field or occupation
Usage: British spelling; American equivalent is 'professionalize'; transitive verb

Examples

• The organization decided to professionalise its staff by implementing formal training programs.
• They worked to professionalise the sport by establishing clear rules and standards.
• The company professionalised its customer service department to improve quality.
• Universities help professionalise graduates by teaching industry best practices.
• The government aims to professionalise the police force through rigorous education requirements.
• She was determined to professionalise her freelance business into a full company.