Definitions for futonˈfu tɒn
Random House Webster's College Dictionary
a quiltlike mattress placed on a floor for sleeping and folded and stored or used as seating at other times.
Origin of futon:
1875–80; < Japn < MChin, = Chin pútuán rush-mat seat
mattress consisting of a pad of cotton batting that is used for sleeping on the floor or on a raised frame
Kernerman English Learner's Dictionary
a mattress that can be folded and used as a sofa
A thin mattress of tufted cotton or similar material, placed on a floor or on a raised, foldable frame as a bed.
A round cushion used for Zen meditation (traditionally made of woven bulrush leaves)
Origin: 布団 (ふとん, futon)