IPA: /nɒnˈfæt/
KK: /nɑnˈfæt/
Describing a product that has had all or most of its fat removed, making it lower in calories and fat content.
I prefer to drink nonfat milk because it has fewer calories than whole milk.
Nonfat → It is formed from "non-" (meaning not) and "fat" (from Old English "fǣtt", meaning having substance or being rich in calories). The word "nonfat" means not having fat or lacking fat content.
Think of 'not' ('non-') and 'having substance' ('fat') to remember that 'nonfat' means lacking fat.