The Chinese word "课题" (kètí) is a compound noun formed by combining two meaningful characters: "课" (kè), which originally means "lesson" or "subject to be taught," and "题" (tí), which means "topic," "question," or "problem." When combined, the literal sense is "lesson topic," but the term has evolved to signify a specific "research project," "study subject," or "task for investigation," often used in academic, scientific, or organizational contexts to denote a focused area of inquiry or a problem to be solved. The formation follows a common Chinese morphological pattern where two related concepts are joined to create a new, more specific meaning that encompasses aspects of both components.