IPA: /ˈʃiːldə/
KK: /ˈʃildər/
A person or thing that protects or defends someone or something from harm or danger.
The brave shielder stood in front of the villagers to protect them from the storm.
Shielder → It is formed from "shield" (from Old English *scield*, meaning a protective device) and "-er" (meaning a person who). A shielder is a person who provides protection or defense.
Think of someone who uses a 'shield' to protect others — that's what a shielder does.