case study ca·ses·tudy uncommon noun 1. a careful study of some social unit (as a corporation or division within a corporation) that attempts to determine what factors led to its success or failure Synonymscase study 2. a detailed analysis of a person or group from a social or psychological or medical point of view Synonymscase study Related words Broader terms analysisreport WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.