There are 13 words that start with 'hollow'.
| hollow | hollows | hollowed | 
| hollower | hollowly | holloware | 
| hollowest | hollowing | hollowares | 
| hollowness | hollowware | hollowwares | 
| hollownesses | ||
Note: These 13 words that start with 'hollow' are found from the USA & Canada version of the tournament Scrabble word list.