There are 4 15-letter words that start with 'gran'.
| grandiloquences | grandiloquently |
| grandiosenesses | grandparenthood |
Note: These 4 15-letter words that start with 'gran' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with grand, granu, grant, grano, grani, grang, grana, grann, grans.
5-letter words start with 'gran' (4)