having or functioning on two levels; arranged on two planes:a bi-level ventilation system
North American denoting a style of two-storey house in which the lower storey is partially sunk below ground level, and the main entrance is between the two storeys.
denoting a railway carriage with seats on two levels.
noun
North American
a bi-level house.
bi-level in other Oxford dictionaries
Definition of bi-level in the US English dictionary
