In Engpsh, a key is often referred to simply as a "key." However, if you want to specify that you are talking about a key for a lock, you can use the term "lock key." For example, you might say, "I need to find my lock key so I can open the door," or "I left my lock key on the counter."
If you are using a local dialect or language, you can simply use the words for "key" and "lock" in that dialect or language, and specify that you are using local terms. For example, you might say, "I need to find my 钥匙 (yàoshi) so I can open the door with it," or "I left my 钥匙 on the counter."
If you are using a local dialect or language, you can simply use the words for "key" and "lock" in that dialect or language, and specify that you are using local terms. For example, you might say, "I need to find my 钥匙 (yàoshi) so I can open the door with it," or "I left my 钥匙 on the counter."