There are 15 words that start with 'certif'.
| certify | certified |
| certifier | certifies |
| certifiers | certifying |
| certifiable | certifiably |
| certificate | certificated |
| certificates | certificating |
| certification | certificatory |
| certifications | |
Note: These 15 words that start with 'certif' are found from the USA & Canada version of the tournament Scrabble word list.