Here are the matched terms with their correct definitions:
1. Version of volleyball played six-on-six - **Indoor volleyball**
2. Hitting the ball to an empty part of the playing area - **Finding a hole**
3. Skill used to finish a point - **Attack**
4. Version of volleyball played two-on-two - **Beach volleyball**
5. The apparatus used to divide the field of play - **Net**
6. More difficult of the two types of serves - **Jump serve**
7. What you would do if you make contact with the ball above shoulder level - **Overhead pass**
8. The boundary where the serve is made - **Service line**
9. The serve used more by novices - **Underhand serve**
10. What you would do if you make contact with the ball below shoulder level - **Bump pass**
Feel free to adjust any terms if they don't align with the specific context you're considering!