9 letter words:
figurists13,
8 letter words:
figurist12,
6 letter words:
grifts10,
firsts9,
frists9,
fruits9,
frusts9,
giusts7,
grists7,
strigs7,
tsuris6,
5 letter words:
frigs9,
frugs9,
gifts9,
grift9,
first8,
fists8,
frist8,
frits8,
fruit8,
frust8,
fusts8,
rifts8,
sifts8,
surfs8,
turfs8,
girts6,
gists6,
giust6,
grist6,
grits6,
gusts6,
strig6,
trigs6,
trugs6,
risus5,
rusts5,
siris5,
situs5,
stirs5,
suits5,
truss5,
4 letter words:
figs8,
frig8,
frug8,
fugs8,
gift8,
firs7,
fist7,
fits7,
fris7,
frit7,
furs7,
fuss7,
fust7,
rifs7,
rift7,
sift7,
surf7,
turf7,
girt5,
gist5,
gits5,
gris5,
grit5,
gurs5,
gust5,
guts5,
rigs5,
rugs5,
tigs5,
trig5,
trug5,
tugs5,
iris4,
isit4,
rits4,
rust4,
ruts4,
siri4,
sirs4,
sist4,
sits4,
sris4,
stir4,
suit4,
tuis4,
utis4,
3 letter words:
fig7,
fug7,
gif7,
fir6,
fit6,
fur6,
ifs6,
rif6,
sif6,
gis4,
git4,
gur4,
gus4,
gut4,
rig4,
rug4,
tig4,
tug4,
ugs4,
its3,
rit3,
rut3,
sir3,
sis3,
sit3,
sri3,
sui3,
sur3,
sus3,
tis3,
tui3,
uts3,
2 letter words:
if5,
gi3,
gu3,
ug3,
is2,
it2,
si2,
st2,
ti2,
ur2,
us2,
ut2,