The word "议案" is formed through a conceptual combination of its two constituent characters: "议" (yì), which carries the meaning of discussing or deliberating upon a matter, and "案" (àn), which denotes a formal proposal, plan, or written document. Together, they merge to form a single concept where the "案" (the formal proposal) is inherently defined by its intended purpose for "议" (deliberation and discussion), creating the complete meaning of a "motion" or "bill" , that is, a formal proposal submitted specifically for consideration and debate in an assembly or meeting.