1-thandeka(yo)-hleMuzi is a nice boy, and he has nice manners — UMuzi yinkwenkwe ethandekayo, yaye unesimilo esihlea nice house — indlu entle
2(food, music, weather, etc.)-mnandi-hleShe cooks nice food — Upheka ukutya okumnandiIt's nice at the beach — Kumnandi elwandlenice weather — imozulu entle
3ngokungekho sikweni-hle-mnandiIt's nice and hot — Imnandi, yaye ishushu
Sometimes these are better words to use: 'beautiful', 'delicious', 'excellent', 'good', 'kind', 'lovely', 'pleasant', 'wonderful'. Check the meanings before you use them.