having two levels of space, as a railroad passenger car with two tiers of seats.
(especially of a house) split-level.
a bi-level house, vehicle, etc.: The family moved from a bungalow into a bi-level.
Origin of bi-level
First recorded in 1955–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019