1. Pronounce with a lowered velum
   "She nasalises all her vowels";
   - nasalize
    
2. Speak nasally or through the nose
   "In this part of the country, people tend to nasalise";
   - nasalize

Derived forms: nasalising, nasalises, nasalised

Type of: articulate, enounce [archaic], enunciate, pronounce, say, sound out