The kanji 錠 primarily conveys the meaning of a "lock" or "key." It represents something that secures, fastens, or closes, often referring to physical locks used on doors, containers, or other items. It can also figuratively represent something that controls or confines.

・On-yomi (音読み): *jō* ・Kun-yomi (訓読み): None, but it is often associated with the verb かける (kakeru), meaning "to lock" or "to fasten."

⚫︎南京錠 (nankinjō) Translation: Padlock ⚫︎錠剤 (jōzai) Translation: Tablet (medicine) ⚫︎暗証番号 (anshō bangō)でロックを錠する (anshō bangō de rokku o jō suru) Translation: To lock with a passcode

The kanji 錠 is a phono-semantic compound (形声文字, *keisei moji*). The semantic component is 金 (kin), which means "metal," and it provides a clue to the meaning of a metallic object like a key or a lock. The phonetic component is 定 (tei/jō), which provides the sound. Together, they form a character that signifies a lock or something that fastens, often made of metal. The original meaning evolved from a simple lock to include other forms of fastening and securing, and the character's form has remained largely consistent over time.