To list a few:
Noun. Note. News. Need. Neat. Neck. Nice. Near. Navy. Naif.
A four letter word that starts with g and ends with n is gown :)
NounNumbNiceNeatNestNameNailNote
Noah
nigh
News Nibs Ness
Sandman (starts with S ends with N - 7 letter word)
Another word for addition which starts with the letter N is New.
Words that start with the letter "N"NiceNounNiceNumberNeatNotaryNimbus
Newfound is a happy word. It begins with the letter n.
NotaryNeatlyNumber
Now
nutrition