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Divan, a large couch usu. without back or arms often 
designed for use as a bed.
Couch, an article of furniture for sitting or reclining, where a patient reclines when undergoing psychoanalysis.
Davenport, a large upholstered sofa often convertible into a bed.
Chesterfield, a davenport usu. with upright armrests.
Sofa, a long upholstered seat usu. with arms and a back and often convertible into a bed.
Settee, a medium-sized sofa with arms and a back.
Love seat, a double chair, sofa or settee for two persons.
Tête-à-tête, a short piece of furniture (as a sofa) intended to seat two persons esp. facing each other
Daybed, a couch that can be converted into a bed.
Litter, a covered and curtained couch provided with shafts and used for carrying a single passenger.
Lounge, a long couch.
Recamier, a sometimes backless couch with a high curved headrest and low footrest.
Squab, couch, a cushion for a couch or chair.
Studio couch, an upholstered usu. backless couch that can be made to serve as a double bed by sliding from underneath it the frame of a single cot.
Triclinium, a couch extending round three sides of a table used by the ancient Romans for reclining at meals.
Banquette, a sofa having one roll-over arm.
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