Die hard and Hard hat

Die hard verb - Continue to exist.

Hard hat and die hard are semantically related. in reactionary topic. In some cases you can use "Hard hat" instead the phrase "Die hard" as a noun or an adjective, when it comes to topics like conservative, cautious.

Hard hat noun - A lightweight protective helmet (plastic or metal) worn by construction workers.

Die hard and hard hat are semantically related. Sometimes you can use "Die hard" instead an adjective phrase "Hard hat".