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

tear. :smiling_face_with_tear:

rate.

take.

lake :rowing_woman:

cake :birthday:

fake :pouting_cat:

faze.

fare :taxi:

fear :scream:

pear. :pear:

pram :baby:

Park :writing_hand:

Mark :man_artist:

Mare :racehorse:

ream :pen:

male :man_beard:

mail✍️

nail :hammer:

lean✍️

elan.