There are 14 words that start with 'swamp'.
| swamp | swamps | swampy |
| swamped | swamper | swampers |
| swampier | swamping | swampish |
| swampiest | swampland | swampiness |
| swamplands | swampinesses | |
Note: These 14 words that start with 'swamp' are found from the USA & Canada version of the tournament Scrabble word list.