There are 15 11-letter words that start with 'sil'.
| silhouetted | silhouettes | silicifying |
| siliconized | silkinesses | sillimanite |
| sillinesses | silverbacks | silverberry |
| silveriness | silverpoint | silversides |
| silversmith | silverwares | silverweeds |
Note: These 15 11-letter words that start with 'sil' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with silv, sili, silk, sile, sill, silt, silh, silo, silu, sila, sild.
4-letter words start with 'sil' (5)