IPA: /ˈwɪndˌtʃɪl/
KK: /wɪndˌtʃɪl/
A measure of how cold it feels outside when the wind is blowing, based on the temperature and wind speed.
The windchill made it feel much colder than the actual temperature.
Windchill is formed from "wind" (from Old English "wind", meaning moving air) and "chill" (from Old English "ciele", meaning coldness). The term "windchill" refers to the perceived decrease in temperature felt by the body due to the flow of air, making it feel colder than the actual air temperature.
Think of 'moving air' ('wind') making you feel 'colder' ('chill') — that's why windchill describes how cold it feels when the wind blows.