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

gulf.

flag :us:

glad.

glam.

lamp :diya_lamp:

plum.

pulp.

pump.

lump.

palm.

lamb.

jamb :door:

blam!

limb.

milk.

kilo 1000

silk.

sulk :frowning_face:

luck.

puck.