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

gems

mage

No dupes on same page, please
in play, gems

so,

mess

Then my “gems” should be disqualified as well.
So back to “germ”.

ergs

rigs

grin

ring

grip

prig

pigs

swig

Sorry about that!

swag

gawk

hawk

walk

lark

park

pork

Mork

cork