grater / greater are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
grater: (noun) utensil with sharp perforations for shredding foods (as vegetables or cheese).
greater: (adjective) greater in size or importance or degree.
grater: g·r·EY·t·er
greater: g·r·EY·t·er
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)