9 letter words:
gunrunner10,
6 letter words:
gunnen7,
gunner7,
runner6,
5 letter words:
regur6,
urger6,
rerun5,
4 letter words:
genu5,
gren5,
grue5,
gurn5,
guru5,
rung5,
urge5,
nurr4,
ruer4,
rune4,
ruru4,
3 letter words:
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,
