IPA: /ˈwɪndpruːf/
KK: /ˈwɪndpruːf/
Something that is designed to keep out wind, often used to describe clothing or materials that protect against windy conditions.
I bought a windproof jacket to stay warm during the storm.
Windproof → It is formed from "wind" (from Old English "wind", meaning moving air) and "proof" (from Old English "profa", meaning resistant or impervious). The word "windproof" means resistant to the effects of wind.
Think of something that is resistant to 'wind' — 'proof' means it can withstand or resist, so 'windproof' describes something that can stand up to the wind.