house·mas·ter 
(housmăs′tər)
(housmăs′tər)n.
A male teacher or professor in charge of a residence hall at a school or college.
- Commines
- Commines
- commingle
- comminute
- comminution
- commiserate
- commiseration
- commiserative
- commiseratively
- commiserator
- commissar
- commissariat
- commissary
- commission
- commissionable
- commissionaire
- commissional
- commissioned officer
- commissioner
- commissionership
- commission merchant
- commission plan
- commissural
- commissure
- commissurotomy