5 letter words:
kiwis12,
tikis9,
4 letter words:
kiwi11,
bisk10,
busk10,
kist8,
kits8,
skit8,
tiki8,
tusk8,
iwis7,
wist7,
wits7,
bits6,
bust6,
buts6,
ibis6,
stub6,
tubs6,
suit4,
tuis4,
3 letter words:
kis7,
kit7,
ski7,
suk7,
tsk7,
wis6,
wit6,
bis5,
bit5,
bus5,
but5,
sib5,
sub5,
tub5,
its3,
sit3,
tis3,
tui3,
uts3,
2 letter words:
ki6,
bi4,
is2,
it2,
si2,
ti2,
us2,
ut2,