There are 17 11-letter words that start with 'house'.
Note: These 17 11-letter words that start with 'house' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with houseb, housel, housew, housem, housec, housef, housep, housek, househ, houses, houser, housed, houseg, houset.
6-letter words start with 'house' (4)