the mast nearest the bow in vessels with two or more masts
例句
A sailing ship with from three to five masts of which only the foremast is square-rigged, the others being fore-and-aft rigged.三桅船有三至五个桅杆且只有前部桅杆有横帆装置其余均有纵帆装置的帆船
A sail, such as a jib, set forward of a foremast.船首帆如三角帆等安装在前桅前方的帆
