- 金钥匙 jīnyàoshi golden keya key made of gold; also refers to a magical key in fairy tales used to open treasure houses
- 钥匙环 yàoshihuán key ringa metal ring or split ring for holding keys together
- 钥匙孔 yàoshikǒng keyhole
- 钥匙链 yàoshiliàn keychainkeychain; key ring
- 一把钥匙开一把锁 yībǎyàoshikāiyībǎsuǒ one key opens one lock(idiom) there is a different solution for each problem; specific problems should be solved with specific methods based on the circumstances
- 配钥匙 pèiyàoshi to duplicate a keyTo make a spare key or a duplicate of an existing key.
- 钥匙儿 yàoshi'ér keykey; erhua form of [[钥匙|鑰匙|yao4 shi5]]
- 钥匙儿童 yàoshi'értóng latchkey childa child who returns from school to an empty house because their parents are at work and who carries their own house key
- 钥匙卡 yàoshikǎ keycardkeycard; electronic card used as a key for a door lock
- 钥匙圈 yàoshiquān key ringA small ring, usually made of metal, used to hold keys together.
- 私人钥匙 sīrényàoshi private keyprivate key used in encryption; the secret half of a key pair used to decrypt data
- 公开钥匙 gōngkāiyàoshi public keythe public key used in computer cryptography and data encryption
- 万能钥匙 wànnéngyàoshi master keya key designed to open many different locks; a skeleton key or passkey