There are 15 words that start with 'napp'.
| nappa | nappe | nappy |
| nappas | napped | napper |
| nappes | nappie | nappers |
| nappier | nappies | napping |
| nappiest | nappiness | nappinesses |
Note: These 15 words that start with 'napp' are found from the USA & Canada version of the tournament Scrabble word list.