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

elan.

lean.

leak :sweat_drops:

walk :walking_man:

claw :lobster:

clap :clap:

clip :paperclip:

pill :pill:

poll :ballot_box:

slop .

slap :face_holding_back_tears:

slip :banana:

limp :leg:

pile :poop:

life :skull_and_crossbones:

file :open_file_folder:

flip :dolphin:

flit :butterfly:

film :movie_camera:

firm :policewoman: