蜡笔用英语可以称作 "crayon". 它是一种用来书写或画画的小巧工具，通常是由蜡和颜料制成，由于它们是由蜡制成，所以又叫做蜡笔。

例句：

I need to buy some crayons for my nephew's birthday party.
My daughter loves to draw with crayons.