There are 7 15-letter words that start with 'ple'.
| pleasurableness | plenipotentiary |
| plenteousnesses | plentifulnesses |
| plethysmographs | plethysmography |
| pleuropneumonia | |
Note: These 7 15-letter words that start with 'ple' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with plea, plen, pleo, pled, plei, pleb, pleu, plet, plex, plec, ples, pler, plew.
4-letter words start with 'ple' (5)