Here are the terms matched with their correct definitions:
- The serve used more by novices - Underhand serve
- Hitting the ball to an empty part of the playing area - Attack/Spike
- What you would do if you make contact with the ball above shoulder level - Overhand hit
- Version of volleyball played two-on-two - Beach volleyball
- Skill used to finish a point - Kill
- The boundary where the serve is made - Service line
- The apparatus used to divide the field of play - Net
- What you would do if you make contact with the ball below shoulder level - Underhand hit
- Version of volleyball played six-on-six - Indoor volleyball
- More difficult of the two types of serves - Overhand serve
Please let me know if you need any further information!