完备
wánbèi · HSK 7
perfect
✅ 完 complete + 备 equipped = fully complete, nothing missing
完 carries the sense of finished or whole; 备 means prepared or equipped. Together they describe something so thoroughly complete that every part is in place — perfect in the sense of lacking nothing.
完 — roof 宀 + yuán 元 (phonetic)
完 is a semantic-phonetic compound: the roof 宀 suggests a house or enclosure, while 元 supplies the sound 'yuán/wán'. Originally it meant a building that was intact or whole, and the sense broadened to 'complete, finish, whole'.