6 letter words:
gunner7,
runner6,
5 letter words:
kreng10,
knurr9,
kurre9,
regur6,
urger6,
rerun5,
4 letter words:
gunk9,
kern8,
knur8,
kune8,
nerk8,
neuk8,
nuke8,
renk8,
genu5,
gren5,
grue5,
gurn5,
rung5,
urge5,
nurr4,
ruer4,
rune4,
3 letter words:
keg8,
erk7,
euk7,
ken7,
kue7,
nek7,
uke7,
eng4,
erg4,
gen4,
gnu4,
gue4,
gun4,
gur4,
neg4,
reg4,
rug4,
ern3,
err3,
nun3,
nur3,
ren3,
rue3,
run3,
ure3,
urn3,
2 letter words:
gu3,
ug3,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,