noun / verb
shield
SHEELD/ʃiːld/
A barrier that protects what is behind it.
The wooden shield intercepts arrows lodged in its outer face.

Etymology
Old English scield already meant both a shield and a protector. The broader sense preserves the defensive object's function: standing between someone and harm.
In context
Think of it like a tiny shield that keeps irritating stuff out so your skin can heal underneath without being bothered.
More examples
- The knight raises his shield to block the blow.
- She shields her eyes from the sun with her hand.
- The thick wall shields the garden from strong winds.
Forms
shield · shields · shielded · shielding