Yes, caper is a Scrabble word!

Verb

1. Jump about playfully

Noun

1. Any of numerous plants of the genus Capparis

2. Pickled flower buds used as a pungent relish in various dishes and sauces

3. A crime (especially a robbery)

4. A playful leap or hop

5. Gay or light-hearted recreational activity for diversion or amusement

6. A ludicrous or grotesque act done for fun and amusement