The act or process of studying. The pursuit of knowledge, as by reading, observation, or research. Attentive scrutiny. A branch of knowledge. A branch or department of learning: graduate studies. A work, such as a thesis, that results from studious endeavor. A literary work on a particular subject. A preliminary sketch, as for a work of art or literature. Music A composition intended as a technical exercise. A state of mental absorption: She is in a deep study. A room intended or equipped for studying or writing. One who memorizes something, especially a performer who memorizes a part: He is a quick study. To apply one's mind purposefully to the acquisition of knowledge or understanding of (a subject). To read carefully. To memorize. To take (a course) at a school. To inquire into; investigate. To examine closely; scrutinize. To give careful thought to; contemplate: study the next move. To apply oneself to learning, especially by reading. To pursue a course of study. To ponder; reflect.