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

tube.

bunt :baseball:

burn!

barn :man_farmer:

bran.

rand.

damn.

dang!

ding :bellhop_bell:

dong.

gold :yellow_circle:

sold.

told.

fold :spades: :hearts: :diamonds: :clubs:

bold.

lobe :ear:

bowl.

bawl :cry:

laws.

slow :stop_sign: