The word 排队 is formed by combining two meaningful characters to create a new, composite idea. The first character, 排 (pái), carries a core sense of arranging in order or lining up, often visualized as arranged wooden tablets. The second character, 队 (duì), fundamentally means a group or a squadron of people. When these two concepts are placed side-by-side, they visually and conceptually merge to depict the action of a group of people arranging themselves into an ordered line, perfectly capturing the meaning "to queue" or "to line up".