sharpener/'∫ɑːpənər $ '∫ɑːrpənər/

n. a thing used to make pencils, knives, etc. sharper

n. [C] 磨具；削具；卷笔刀：a knife sharpener 磨刀石

◇a pencil sharpener 卷笔刀

构词sharpen + -er

同缀 cleaner; container; opener; sharpener