There are 16 words that start with 'unu'.
| unused | unurged |
| unusual | ununbium |
| ununited | unusable |
| ununbiums | unununium |
| unusually | unuttered |
| unununiums | unutilized |
| unusualness | unutterable |
| unutterably | unusualnesses |
Note: These 16 words that start with 'unu' are found from the USA & Canada version of the tournament Scrabble word list.