7 letter words:
risibly12,
5 letter words:
byrls10,
sibyl10,
birls7,
libri7,
4 letter words:
byrl9,
syli7,
birl6,
bris6,
ibis6,
libs6,
ribs6,
iris4,
liri4,
3 letter words:
bys8,
sly6,
bis5,
lib5,
rib5,
sib5,
lis3,
sir3,
sri3,
2 letter words:
by7,
bi4,
is2,
li2,
si2,
