noun🔗ShareHauptmastThe chief, and tallest mast of a sailing ship that has more than one mast."The sailor climbed the mainmast to get a better view of the approaching storm. "Der Seemann kletterte auf den Hauptmast, um eine bessere Sicht auf den herannahenden Sturm zu haben.nauticalsailingvehicletechnicalChat with AIVocabulary GamePractice Reading