There are 18 words that start with 'plus'.
| plus | plush | pluses |
| plushy | plusher | plushes |
| plushly | plusses | plushest |
| plushier | plushily | plussage |
| plushiest | plushness | plussages |
| plushiness | plushnesses | plushinesses |
Note: These 18 words that start with 'plus' are found from the USA & Canada version of the tournament Scrabble word list.