旌 (jīng) is a bound form (b.f.) — it cannot stand alone and appears as a morpheme in literary or formal compounds. Its primary meaning is a banner or flag, originally derived from an ancient feather‑decked mast used for signaling. In modern written Chinese it is most common in 旌旗 (banners/flags) and idioms like 旌旗招展 (banners fluttering). It can also function as a verbal morpheme meaning 'to commend publicly' in classical‑style compounds such as 旌表.