The word 社长 (shèzhǎng) is a compound noun formed through the common Chinese morphological process of combination, where two meaningful characters (morphemes) are joined to create a new term. The first character, 社 (shè), means "society", "organization", or "club". The second character, 长 (zhǎng), means "chief", "head", or "leader". When combined, they follow a modifier-head structure where "社" modifies the type of leader specified by "长", resulting in the meaning "head of a society/organization", such as the president of a company, the editor-in-chief of a newspaper, or the chairperson of a club.