There are 9 13-letter words that start with 'hou'.
| housebreakers | housebreaking | 
| housecleaning | househusbands | 
| housekeepings | houselessness | 
| housepainters | housewarmings | 
| housewiferies | |
Note: These 9 13-letter words that start with 'hou' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with hous, hour, houn, houd.
4-letter words start with 'hou' (1)