A deck over the skid beams in the (traditionally open) waist that turned the separate forecastle and quarterdeck into a single structure; by extension it was applied to the whole of this deck in so-called 'double-banked' frigates (the upper deck from which sails, rigging and spars are controlled.)
Imitha ekhazimlayo ngaphaya komgangatho (ngokusesikweni) xa ivulwa umphambili ujika inqaba namacala amane abe sisakhiwo esinye; xa yoluliwe iyenzeka kuwo wonke umgangatho into eba 'ngamacala amabini akhulayo' inqanawe enkulu ekhawulezayo eyenza ukhuseleko lwale mihla (umphezulu wenqanawe apho inqanawe, iintambo nemithi ilawulwa khona.)