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

west :arrow_left:

stew!

pest :ant:

step :foot:

stop!

pots :shallow_pan_of_food:

spot :black_circle:

past :mantelpiece_clock:

spat :bangbang:

taps :trumpet:

tasp :grinning:

soap :bathtub:

posh $

mosh :metal:t2:

home :house:

Hove.

hope :crossed_fingers:t2:

rope.

pour :beer:

pout :pouting_cat: