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

emit.

mite :spider:

mate :couple:

atom :atom_symbol:

tomb :point_down:

bomb :bomb:

boom!

moon :full_moon:

coon :raccoon:

coot :older_adult:

taco :taco:

coat :coat:

coax :mountain_cableway:

coal :pick:

foal :deer:

foil :person_fencing:

fail :disappointed:

Gail :pouting_woman:

pail :ocean:

paid :moneybag: