1. [v]  pronounce with a lowered velum; "She nasalizes all her vowels"
2. [v]  speak nasally or through the noze; "In this part of the country, people tend to nasalize"

NASALIZE is a 8 letter word that starts with N.

1. \Na"sal*ize\, v. t. [imp. & p. p. {Nasalized}; p. pr. &
   vb. n. {Nasalizing}.]
   To render nasal, as sound; to insert a nasal or sound in.
   
   

2. \Na"sal*ize\, v. t.
   To utter words or letters with a nasal sound; to speak
   through the nose.