6 letter words:
fright13,
5 letter words:
fight12,
firth11,
frith11,
girth9,
grift9,
grith9,
right9,
4 letter words:
frig8,
gift8,
frit7,
rift7,
thir7,
girt5,
grit5,
trig5,
3 letter words:
fig7,
ghi7,
fir6,
fit6,
hit6,
rif6,
git4,
rig4,
2 letter words:
hi5,
if5,
it2,
ti2,