The most common shapes are called open-ended spanner and ring spanner. The term wrench is generally used for tools that turn non-fastening devices (e.g. tap wrench and pipe wrench), or may be used for a monkey wrench - an adjustable spanner. In North American English, wrench is the standard term.
The definition of first mate is the person on a boat that is second in charge after the captain. An example of first mate is the person who gives orders while the captain is busy. first mate. first mate.
Coxswain, go on board and tell my steward to have dinner for six. The coxswain stoops over Cloete and cries: Did you hear what the mate said, sir? Cloete is dragged into the life-boat and the coxswain tumbles in. The coxswain of the life-boat can swear to it that the drawers were all empty. He says as how he belonged to a yacht, sir, resumed the coxswain.