There are 8 11-letter words that start with 'bil'.
| bilaterally | bilgewaters | bilingually | 
| biliousness | biliverdins | billboarded | 
| billionaire | bilocations | |
Note: These 8 11-letter words that start with 'bil' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with bill, bili, bila, bilb, bilg, bilo, bile, bilk, bilh, bild, bils, bilt.
4-letter words start with 'bil' (3)