"Settee. A vessel with one deck and a very long sharp prow, carrying two or three masts with lateen…
A couch or "Darby and Joan seat, a settee having two chair-like backs, for two persons." -Whitney, 1911
A couch is a generic term in North America and Australia, for an item of furniture designed to seat…
"A seat or bench of a particular form. A sofa; especially a sofa of peculiar pattern, as a short one…