bi-lev•elPronunciation: (bī lev'ul), [key]
having two levels of space, as a railroad passenger car with two tiers of seats.
(esp. of a house) split-level.
a bi-level house, vehicle, etc.: The family moved from a bungalow into a bi-level.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.