head - (nautical) a toilet on board a boat or ship

public convenience, public lavatory, public toilet, restroom, toilet facility, wash room, comfort station, convenience - a toilet that is available to the public

room - an area within a building enclosed by walls and floor and ceiling; "the rooms were very small but they had a nice view"

commode, crapper, potty, pot, throne, toilet, stool, can - a plumbing fixture for defecation and urination

washroom - especially a lavatory in a public place

loo, W.C., water closet, closet - a toilet in England