Hero and Preserver

Hero noun - A person who is the object of extreme or uncritical devotion.

Preserver and hero are semantically related In some cases you can use "Preserver" instead a noun "Hero".

Nearby Words: heroic, heroine, heroism, heroically

Preserver noun - Rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning.

Hero and preserver are semantically related in person who redeems topic. You can use "Hero" instead a noun "Preserver".

Nearby Words: preserve, preserved, preservation, preserving, preservative