| 1. | following an occupation as a means of livelihood or for gain: a professional builder. |
| 2. | of, pertaining to, or connected with a profession: professional studies. |
| 3. | appropriate to a profession: professional objectivity. |
| 4. | engaged in one of the learned professions: A lawyer is a professional person. |
| 5. | following as a business an occupation ordinarily engaged in as a pastime: a professional golfer. |
| 6. | making a business or constant practice of something not properly to be regarded as a business: “A salesman,” he said, “is a professional optimist.” |
| 7. | undertaken or engaged in as a means of livelihood or for gain: professional baseball. |
| 8. | of or for a professional person or his or her place of business or work: a professional apartment; professional equipment. |
| 9. | done by a professional; expert: professional car repairs. |
| 10. | a person who belongs to one of the professions, esp. one of the learned professions. |
| 11. | a person who earns a living in a sport or other occupation frequently engaged in by amateurs: a golf professional. |
| 12. | an expert player, as of golf or tennis, serving as a teacher, consultant, performer, or contestant; pro. |
| 13. | a person who is expert at his or her work: You can tell by her comments that this editor is a real professional. |