The Chinese word **大军 (dàjūn)**, meaning "large army" or "great force," is a classical **modifier-head compound noun** formed through straightforward semantic combination. The first character, **大 (dà)**, means "big" or "great," acting as an adjective to modify the second character, **军 (jūn)**, which means "army" or "military forces." The resulting compound literally translates to "big army," but it has expanded metaphorically to refer to any large, organized group of people (e.g., a "大军 of tourists" or "labor大军"), effectively creating a single lexical unit where the adjective intensifies and specifies the scale of the noun. This formation follows a common and productive pattern in Mandarin where an adjective directly precedes and qualifies a noun to create a new, fixed concept.