7 letter words:
unplugs10,
6 letter words:
unplug9,
5 letter words:
gulps8,
plugs8,
pungs8,
lupus7,
sunup7,
lungs6,
slung6,
4 letter words:
gulp7,
plug7,
pugs7,
pung7,
plus6,
puls6,
puns6,
spun6,
gnus5,
guls5,
guns5,
lugs5,
lung5,
slug5,
snug5,
sung5,
sulu4,
ulus4,
3 letter words:
pug6,
pul5,
pun5,
pus5,
sup5,
ups5,
gnu4,
gul4,
gun4,
lug4,
nus3,
sun3,
ulu3,
uns3,
2 letter words:
up4,
nu2,
un2,
us2,