A mark painted on the sides of vessel designating the depth to which the vessel may, under the maritime laws, be loaded in different bodies of water during various seasons of the year.
Uphawu olupeyintwe kumacala enqanawe nolubonakalisa ubunzulu, (phantsi kwemithetho yaselwandle), enobuthwaliswa emanzini ngamaxesha ahlukeneyo onyaka.