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

fort :european_castle:

fore :golfing_man:

role :face_with_peeking_eye:

lore :books:

lobe :ear:

lube :oncoming_automobile:

bell :bell:

bull :ox:

ball :football:

tall :arrow_up_small:

wall :brick:

call :telephone_receiver:

calf :cow2:

half :haircut_man:

hall :city_sunset:

tall.

talk :speech_balloon:

walk :walking_man:

balk :sunny:

bask :sunny: