There are 11 words that start with 'trifo'.
| trifold | triform | trifocal |
| triforia | trifocals | trifolium |
| triforium | triformed | trifoliate |
| trifoliums | trifoliolate | |
Note: These 11 words that start with 'trifo' are found from the USA & Canada version of the tournament Scrabble word list.