A polisher, in this sense, is a machine that rubs a surface until it is smooth and shiny. A floor polisher goes over wood or stone. A metal polisher shines metal. In a salon, a small nail polisher is a tool for nails. The -er here means “the thing that does the polishing.” Though actually, the same spelling can also mean a person whose job is to polish shoes, cars, or furniture. This entry is the machine. In shops you will see “floor polisher” or “bench polisher” on the box. It is a practical workshop word, not a fancy one. A different word, Polish — a person or the language of Poland — is written with a capital P and said with a different vowel. They only look similar on the page.

拋光機