碑牌 (bēi pái) refers to a commemorative stone tablet—typically carved with inscriptions honoring historical events, notable people, or achievements. The character 碑 (bēi) means 'stele' or 'upright stone tablet', often used in formal, solemn contexts like temples, cemeteries, or public monuments; 牌 (pái) usually means 'plaque' or 'sign', suggesting a flat, inscribed surface meant for display. Together, 碑牌 emphasizes both the material (stone) and function (commemoration/display), distinguishing it from simpler wooden signs or modern billboards.

This term appears most frequently in cultural, historical, and architectural settings—especially when describing preserved or newly erected memorials in parks, ancestral halls, or heritage sites. While 碑 and 牌 can appear separately (e.g., 纪念碑 jìniànbēi 'monument', 招牌 zhāopái 'shop sign'), 碑牌 is a compound that specifically evokes traditional, stone-based commemorative objects, often with classical calligraphy and enduring cultural significance.