sill Synonyms

blacks and whites batholith eighty-eight transverse transom tonne timber threshold substruction stylobate stud strut stereobate step SPAR control board control panel window ledge instrument board cockpit console master control desk jack field ledges windowsill window sill rocker panel claviature breast wall mantlepiece saw log instrument panel shelf shelves scaffolding groundsel girder entrance doorway doorstone doorstep doorsill door crossbar clavier cantilever bracket bookshelf beam groundsill joist