A zester is a kitchen tool that is used to extract the flavorful zest from citrus fruits. But did you know that there are other words you can use to describe this versatile tool? Some common synonyms for zester include citrus grater, lemon zester, orange zester, and lime zester. These terms can be used interchangeably to describe the same tool that is used to scrape off the flavorful outer layer of a fruit's skin. No matter what you call it, a zester is an essential tool for any chef or home cook who wants to infuse their dishes with bright, tangy citrus flavors.