feat / feet 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. 👇
feat: (noun) a notable achievement.
feet: (noun) the part of the leg of a human being below the ankle joint. (noun) a linear unit of length equal to 12 inches or a third of a yard. (noun) the lower part of anything. (noun) any of various organs of locomotion or attachment in invertebrates. (noun) travel by walking. (noun) a member of a surveillance team who works on foot or rides as a passenger. (noun) a support resembling a pedal extremity.
feat: f·IY·t
feet: f·IY·t
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)