| coffee roasting(expression, interest, recreation, pastime) |
| coin collecting(expression, interest, recreation, pastime) |
| color guard(expression, interest, recreation, pastime) |
| coloring(noun, interest, recreation, pastime) |
| comic book collecting(expression, interest, recreation, pastime) |
| computer programming(expression, interest, recreation, pastime) |
| cooking(noun, interest, recreation, pastime) |
| cosplaying(noun, interest, recreation, pastime) |
| couponing(noun, interest, recreation, pastime) |
| creative writing(expression, interest, recreation, pastime) |
| crocheting(noun, interest, recreation, pastime) |
| cross-stitch(noun, interest, recreation, pastime) |
| crossword puzzles(expression, interest, recreation, pastime) |
| cryptography(noun, interest, recreation, pastime) |
| curling(noun, interest, recreation, pastime) |
| cycling(noun, interest, recreation, pastime) |
| dancing(noun, interest, recreation, pastime) |
| darts(noun, interest, recreation, pastime) |
| debate(noun, interest, recreation, pastime) |
| deltiology(noun, interest, recreation, pastime) |