A cewar ƙamus, kalmar “longshoreman” suna ne da ke nufin mutumin da ke aiki a kan tashar ruwa, ruwa, ko tudun ruwa, lodi da sauke kaya daga jiragen ruwa. Longshoremen yawanci suna aiki a cikin jigilar kayayyaki da masana'antar ruwa kuma suna da alhakin sarrafawa da jigilar kayayyaki, kwantena, da sauran kayayyaki tsakanin jiragen ruwa da jigilar ƙasa, kamar manyan motoci ko jiragen ƙasa. Longshoremen na iya shiga cikin tanadin kaya a cikin jiragen ruwa, sarrafa manyan injuna, da yin wasu ayyuka masu alaƙa.