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

aloe :potted_plant:

lope.

pole!

sole :mans_shoe:

sale :wink:

salt :salt:

sale :moneybag:

sail :sailboat:

ails :face_with_thermometer:

alas!

slam :fist:

slim :thinking:

slum :heavy_check_mark:

mule :horse:

blue :blue_heart:

lube :oil_drum:

Uber👽

beer :beer:

bees :honeybee:

seep.