U+549B "咛" CJK Unified Ideograph-# Unicode Character

U+549B "咛" CJK Unified Ideograph-# is a Chinese character primarily used in modern Mandarin, where it functions as a verb meaning to caution, advise, or remind, often with a sense of repeated or earnest instruction. It is commonly found in the reduplicated form "叮咛" (dīngníng), which means to urge or exhort someone carefully, such as when giving heartfelt advice or warnings. As part of the CJK Unified Ideographs block, it is represented by the radical "口" (mouth) on the left, indicating its association with speech or vocal expression, and the phonetic component "宁" which suggests its pronunciation. This character appears in both simplified and traditional Chinese writing, though it is more frequently encountered in Mandarin texts and dialogues.