The word 嫌疑人 is formed through a logical, layered combination of concepts: starting with 人 (person), which is modified by 疑 (doubt), to create the idea of a "person of doubt". This is then further specified by the preceding character 嫌 (suspicion), which intensifies and formalizes the doubt into a specific legal or investigative status. Thus, the term builds from the general to the specific, picturing a person enveloped first by doubt and then by concrete suspicion.