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

bark :dog:

dark :new_moon:

dank.

bank. :bank:

bans :angry:

bins.

buns. :hamburger: :hotdog: :us:

runs :running_woman:

runt :pig2:

bunt. :baseball:

stun.

nuts!

snot.

note. :musical_note:

tone :musical_note:

vote!

veto :heavy_multiplication_x:

oven. :cookie:

Jove :eagle:

dove. :dove: