"Study at mist" is a phrase often used to describe a person's concentration on a particular subject or topic. There are several synonyms that can be used in place of this phrase, such as "delve into", "research", "investigate", "analyze", and "examine". Each of these words carries a slightly different connotation, but all imply a focused and intentional effort to gain knowledge and understanding. For instance, "delve into" suggests an exploration of the depths of a subject, while "analyze" implies a more systematic and thorough approach to gathering information. Using these synonyms can help add variety and precision to your writing or speech, allowing you to express yourself more effectively.