Seven letter words change one or two letter to make a new word

innings

ruining

punning

tanning

Antigua

tagline

Gatling

gelding

Psst, b_d, #1216

[HEY BURPO - you only repeated one letter - d - and you used 13 characters.]

(using gatling)

tagging

gagging

(shoo, fly)

gassing

(floosie?)

massing

massive

missive

missile

fissile

fission

fishing