Choate is a proper noun used mainly as a surname or place name. It refers to a specific person, family, or institution (e.g., Choate Rosemary Hall). In pronunciation discussions it is treated as a proper noun with a monosyllabic or near-monosyllabic vowel sound followed by a t, often pronounced /ˈtʃoʊt/ in American usage. The term carries no common verb or adjective functions in general English.
Full pronunciation guide