7 letter words:
plunger10,
6 letter words:
gulper9,
plunge9,
pungle9,
repugn9,
lunger7,
5 letter words:
purge8,
unpeg8,
prune7,
puler7,
gluer6,
gruel6,
luger6,
lunge6,
4 letter words:
gulp7,
plug7,
pung7,
lerp6,
pern6,
plue6,
puer6,
pule6,
pure6,
purl6,
genu5,
glen5,
glue5,
gren5,
grue5,
gule5,
gurl5,
gurn5,
leng5,
luge5,
lung5,
rung5,
urge5,
lune4,
lure4,
nurl4,
rule4,
rune4,
3 letter words:
gup6,
peg6,
pug6,
lep5,
nep5,
pen5,
per5,
plu5,
pre5,
pul5,
pun5,
pur5,
rep5,
urp5,
eng4,
erg4,
gel4,
gen4,
gnu4,
gue4,
gul4,
gun4,
gur4,
leg4,
lug4,
neg4,
reg4,
rug4,
ern3,
leu3,
lur3,
nur3,
ren3,
rue3,
run3,
ule3,
ure3,
urn3,
2 letter words:
pe4,
up4,
gu3,
ug3,
el2,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,
