IPA: //ˈwɔːtərˌski//
KK: /ˈwɔːtərˌski/
A type of ski designed for gliding on water while being pulled by a boat.
He loves to waterski during the summer at the lake.
Waterski is formed from "water" (from Old English "wæter", meaning the liquid that falls as rain or is found in rivers and lakes) and "ski" (from Norwegian "ski", meaning a long, narrow piece of wood or other material used for gliding over snow or water). The word "waterski" refers to the activity of gliding over water on skis.
Think of 'water' as the liquid you glide on and 'ski' as the long piece of material you use to glide. This helps you remember that waterskiing is about gliding over water on skis.
No commonly confused words.