The word 刀锋 (dāofēng) is a compound noun formed through semantic combination, where the first character 刀 (dāo) meaning "knife" or "blade" modifies the second character 锋 (fēng) meaning "sharp point" or "cutting edge." Together, they create a modifier-head structure, literally translating to "the edge of a blade." This construction follows a common pattern in Chinese where two related nouns are combined to specify a particular aspect or part of a whole, resulting in a term that can be used both literally to describe the sharp part of a knife and metaphorically to convey concepts of sharpness, precision, or the forefront of something.