canula
nepenthe
A six letter word that starts with N and includes an I and a P is NIPPLE.
I suppose it will always be unknown.
noting
A six letter word for undeliverable mail is nixies.
Hanger is a six letter word.
Pavane ( if you want 6 letters ) or gavotte ( for 7 letters )
Kitten or mitten.
bunion, canyon, canton, and, wanton.
Asians!
_en_ _ _ _? There are a lot of words...: lenders benders sending pending lending bending mending tenfold, menfolk, central
Nugget.