There are 12 words that start with 'platy'.
| platy | platys |
| platypi | platypus |
| platyfish | platypuses |
| platyfishes | platyrrhine |
| platyrrhines | platyhelminth |
| platyhelminths | platyhelminthic |
Note: These 12 words that start with 'platy' are found from the USA & Canada version of the tournament Scrabble word list.