a cluster of piles driven into the bottom of a harbor and bound firmly together for the mooring of boats, permanent moorings in which the vessel is tied up fore and aft to clusters of piles to prevent it from swinging with changes of wind and tide and to enable it to load or discharge in lighters, kaldale või merre rammitud veest väljaulatuv vai või vaiade kimp, mille külge laevad saavad sadamas või reidil kinnituda