"Study at naked" implies the act of studying in a state of undress. However, as this phrase may stem from a misunderstanding or typo, it is important to clarify alternative options that align with the intended meaning. Instead, one may consider referring to engaging in academic pursuits or concentrating on education. Synonyms for this purpose include "hit the books", "cram", "read up on", "research" or "immersed in learning". These phrases emphasize the act of diligently acquiring knowledge, focusing on educational materials, and investing time into expanding one's understanding in an appropriate and intellectually stimulating environment.