a)landlord=a man who rents out land, a building, or accommodation
tenant=a person who occupies land or property rented from a landlord.
The tentant rents from the landlord.
b)house=a building for human habitation, especially one that consists of a ground floor and one or more upper storeys.
bungalow=a low house having only one storey or, in some cases, upper rooms set in the roof, typically with dormer windows.
c)ground floor =the floor of a building at ground level.
first floor = the floor of a building above the ground floor.
