9 letter words:
hygienics18,
8 letter words:
hygienic17,
6 letter words:
hyenic14,
shying13,
eching12,
chines11,
echini11,
inches11,
niches11,
hieing10,
hinges10,
neighs10,
icings9,
incise8,
5 letter words:
synch13,
yechs13,
hying12,
shiny11,
chine10,
chins10,
niche10,
yince10,
eying9,
hinge9,
neigh9,
nighs9,
genic8,
icing8,
shine8,
cines7,
since7,
genii6,
segni6,
sengi6,
singe6,
nisei5,
4 letter words:
yech12,
chin9,
chis9,
ichs9,
inch9,
syce9,
sync9,
ghis8,
nigh8,
sigh8,
cigs7,
hens7,
hies7,
hins7,
hisn7,
shin7,
sinh7,
snye7,
syne7,
yens7,
yins7,
cine6,
ices6,
nice6,
sice6,
egis5,
engs5,
gens5,
gien5,
gies5,
gins5,
negs5,
sign5,
sing5,
nisi4,
sine4,
3 letter words:
hey9,
shy9,
yeh9,
chi8,
hic8,
ich8,
icy8,
gey7,
ghi7,
cig6,
hen6,
hes6,
hie6,
hin6,
his6,
she6,
syn6,
yen6,
yes6,
yin6,
cis5,
ice5,
sec5,
sic5,
eng4,
gen4,
gie4,
gin4,
neg4,
seg4,
ens3,
ins3,
sei3,
sen3,
sin3,
2 letter words:
eh5,
he5,
hi5,
sh5,
ye5,
en2,
es2,
in2,
is2,
ne2,
si2,