I am taken before I am given, I vanish when held, I return only when lost, And I’m never the same twice.

A fowl way to tell someone to protect their head.

Where your car can be stored, and what your car may travel on

Attached to a clock, it tolls for the time. Attached to a church, it rings for the dead. In a coffin, you make this ring with a strong hope someone is listening. What is this four-letter word that you hope does not toll for you?

First: I'm the one you were given. Nick me: I'm informal or fast, Drop me: you're trying to impress somebody. Knight me: I sound like one's last.