There are 13 words that start with 'dupli'.
| duplicate | duplicity |
| duplicated | duplicates |
| duplicator | duplicating |
| duplication | duplicative |
| duplicators | duplicities |
| duplicitous | duplications |
| duplicitously | |
Note: These 13 words that start with 'dupli' are found from the USA & Canada version of the tournament Scrabble word list.