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

stop.

slop.

pole :barber:

pool.

plod.

loud :loudspeaker:

dour.

sour :lemon:

tour.

rust :red_car:

sure :white_check_mark:

ruse.

sore :face_with_head_bandage:

rose :rose:

dose.

sued!

dusk :city_sunset:

suck.

luck :yin_yang:

puck.