in the British and Canadian navies in the past, and in some other navies, a rank held by someone who is not an officer but is more experienced than an ordinary seaman

My grandfather was an able seaman on one of HM Navy ships.

The Victoria Cross was awarded to Able Seaman William Savage. 维多利亚十字勋章授给了一等水兵威廉 • 萨维奇。