Four letter words--Change 0 to 1 letter to make a new word

snap :face_with_spiral_eyes:

nape.

pain :face_with_head_bandage:

rain :umbrella:

rail :steam_locomotive:

liar :smiling_imp:

lard :santa:

lord :person_with_crown:

road :cake:

rood :latin_cross:

door :door:

dour :unamused:

tour :earth_asia:

root :evergreen_tree:

toot :trumpet:

Tool :hammer_and_wrench:

cool :sunglasses:

loco :crazy_face:

colt :horse:

loot :moneybag: :coin: :yen: :dollar: :euro: :pound: