There are 11 words that start with 'neopl'.
| neoplasm | neoplasia |
| neoplasms | neoplasty |
| neoplasias | neoplastic |
| neoplasties | neoplasticism |
| neoplasticist | neoplasticisms |
| neoplasticists | |
Note: These 11 words that start with 'neopl' are found from the USA & Canada version of the tournament Scrabble word list.