There are 15 words that start with 'plump'.
| plump | plumps | plumped |
| plumpen | plumper | plumply |
| plumpens | plumpers | plumpest |
| plumping | plumpish | plumpened |
| plumpness | plumpening | plumpnesses |
Note: These 15 words that start with 'plump' are found from the USA & Canada version of the tournament Scrabble word list.