[TexasGator]

"A key is a key is a key is a key...no matter what it is made out of, nor how it is shaped. Keys are used to open and lock things."

A 'key' by your definition ...

[nopardons]

Now you’re just being silly! ;^)

[TexasGator]

” Keys are used to open and lock things.”

No. Keys are used to unlock and lock things.

Openers are used to open things.