IPA: /ˈhiːlər/
KK: /ˈhilər/
A person who helps to make someone healthy again, often through special skills or beliefs.
The healer used natural remedies to treat her patients.
Healer → It is formed from "heal" (from Old English *hǣlan*, meaning to make whole or to cure) and "-er" (meaning a person who). The word "healer" refers to a person who makes others whole or cures them.
Think of someone who makes others 'whole' ('heal') — the '-er' just means a person. A healer is someone who helps others become whole again.