The word 裂缝 is formed by combining two meaningful characters: 裂, which conveys the action or state of splitting or cracking apart, and 缝, which denotes a seam, gap, or narrow opening. Together, they create a compound where the first character describes the cause or process (splitting), and the second character specifies the resulting physical form (a gap or fissure). This direct conceptual fusion results in the clear and visual meaning of "crack" or "crevice".