Hapon
Sandman (starts with S ends with N - 7 letter word)
Domain is one of the words that starts with the letter D and ends with the letter N.
Nauru starts with N and ends with U. Nauru is an island country in Micronesia.
spleen
Washington
NASCAR
A four letter word that starts with g and ends with n is gown :)
nutrition
Kitten or mitten.
onion
maturation
traction