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

stem.

meat :bacon:

meal :plate_with_cutlery:

lamb :sheep:

lame :disappointed_relieved:

tame :lion:

mate :two_hearts:

meat :cut_of_meat:

meal :shallow_pan_of_food:

leaf :herb:

feel.

peel :tangerine:

leap.

pale :ghost:

peel :banana:

peal :bell::bell:

play :teddy_bear:

yaps :dog:

spay :dog:

pays :dollar_banknote: