| Doubletree (n.) The bar, or crosspiece, of a carriage, to which the singletrees are attached. Thesaurus Entries Easter sepulcher, ambry, apse, baptistery, blindstory, chancel, choir, cloisters, confessional, confessionary, cross bitt, crossarm, crossbar, crosspiece, crypt, diaconicon, diaconicum, doubletree, nave, porch, presbytery, rood loft, rood stair, rood tower, sacrarium, sacristy, singletree, swingletree, transom, transversal, transverse, traverse, triforium, vestry, whippletree |