The Chinese word "骑警" (qí jǐng) is a straightforward compound noun formed by combining the character "骑" (qí), meaning "to ride" or "mounted" (often on a horse or bicycle), with "警" (jǐng), an abbreviation for "警察" (jǐngchá) meaning "police". The structure follows a modifier-head format common in Mandarin, where the first character "骑" describes the method or mode (mounted) and the second character "警" specifies the core profession (police), thereby logically creating the meaning "mounted police" or "equestrian police officer".