7 letter words:
biotics11,
6 letter words:
fistic11,
biotic10,
oboist8,
5 letter words:
coifs10,
coofs10,
foist8,
foots8,
boost7,
boots7,
coots7,
obits7,
scoot7,
stoic7,
4 letter words:
coft9,
coif9,
coof9,
fibs9,
fico9,
fisc9,
fobs9,
foci9,
cobs8,
fist7,
fits7,
foot7,
sift7,
soft7,
bios6,
bits6,
boos6,
boot6,
bots6,
cist6,
coos6,
coot6,
cost6,
cots6,
ibis6,
obis6,
obit6,
otic6,
scot6,
stob6,
tics6,
oots4,
soot4,
3 letter words:
fib8,
fob8,
cob7,
fit6,
ifs6,
oft6,
bio5,
bis5,
bit5,
boo5,
bos5,
bot5,
cis5,
coo5,
cos5,
cot5,
obi5,
sib5,
sic5,
sob5,
tic5,
its3,
oot3,
sit3,
sot3,
tis3,
too3,
2 letter words:
if5,
of5,
bi4,
bo4,
is2,
it2,
oi2,
os2,
si2,
so2,
ti2,
to2,