There are 10 15-letter words that start with 'pha'.
| phantasmagorias | pharisaicalness |
| pharmaceuticals | pharmacodynamic |
| pharmacognosies | pharmacognostic |
| pharmacokinetic | pharmacological |
| pharmacologists | pharmacotherapy |
Note: These 10 15-letter words that start with 'pha' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with phar, phal, phan, phag, phas, phat, phae.
4-letter words start with 'pha' (1)