There are 13 words that start with 'mello'.
| mellow | mellows | mellowed |
| mellower | mellowly | mellotron |
| mellowest | mellowing | mellophone |
| mellotrons | mellowness | mellophones |
| mellownesses | ||
Note: These 13 words that start with 'mello' are found from the USA & Canada version of the tournament Scrabble word list.