Professional.
In favor of.
Professional.
A prostitute.
A professional sportsman.
A chemical prophylaxis taken after sex to avoid contracting venereal disease.
A person who supports a concept or principle.
An advantage of something, especially when contrasted with its disadvantages (cons).
Of close to professional standard; prosumer.
Of or pertaining to a semiprofession.
Paid as a professional but on a part-time basis.
A semiprofessional person.