7 letter words:
twibils12,
6 letter words:
twibil11,
5 letter words:
wilts8,
4 letter words:
iwis7,
wilt7,
wist7,
wits7,
bits6,
ibis6,
libs6,
list4,
lits4,
silt4,
slit4,
tils4,
3 letter words:
wis6,
wit6,
bis5,
bit5,
lib5,
sib5,
its3,
lis3,
lit3,
sit3,
til3,
tis3,
2 letter words:
bi4,
is2,
it2,
li2,
si2,
ti2,