2 a: application of the mental faculties to the acquisition of knowledge 〈years of study〉 b: such application in a particular field or to a specific subject 〈the study of Latin〉 c: careful or extended consideration 〈the proposal is under study〉 d (1): a careful examination or analysis of a phenomenon, development, or question (2): the published report of such a study 3: a building or room devoted to study or literary pursuits 4: PURPOSE, INTENT 〈it has been the study of my life to avoid those weaknesses