The Chinese term "世界级" (shìjiè jí) is a modern compound word formed through semantic combination, where the noun "世界" (world) modifies the bound morpheme "级" (level, class, or rank). This structure follows the common modifier-head pattern in Chinese, similar to "国家级" (national-level). Literally meaning "world-level," it functions as an adjective to describe something that meets a global standard of excellence, thus equating to the English concept of "world-class." The formation is logical and transparent, directly reflecting its meaning through the combination of its constituent parts.