IPA: /ˈbæθˌmæt/
KK: /ˈbæθˌmæt/
A mat placed in front of a bathtub or shower to soak up water and help prevent slipping.
I always place a bathmat on the floor to keep it dry after my shower.
Bathmat → The word is formed from "bath" (from Old English *baþ*, meaning a washing or soaking) and "mat" (from Old French *matte*, meaning a mat or rug). A bathmat is a mat used in the bathroom, typically placed near a bath or shower to absorb water and provide a non-slip surface.
Think of a 'washing' area ('bath') where you need a 'rug' ('mat') to keep the floor dry. This helps you remember that a bathmat is used in the bathroom.
No commonly confused words.