9 letter words:
bookworks22,
workbooks22,
8 letter words:
bookwork21,
workbook21,
ribworks17,
7 letter words:
ribwork16,
korkirs15,
borrows12,
rooibos9,
6 letter words:
kikois14,
kokiri14,
korkir14,
brooks12,
borrow11,
irokos10,
kirris10,
kooris10,
sorrow9,
oribis8,
pooris8,
priors8,
sbirri8,
sbirro8,
5 letter words:
kikoi13,
kiosk13,
kirks13,
kooks13,
skrik13,
kiwis12,
works12,
birks11,
bokos11,
books11,
borks11,
briks11,
brisk11,
brook11,
kobos11,
pikis11,
pooks11,
porks11,
spook11,
bowrs10,
brows10,
prows10,
swoop10,
woops10,
iroko9,
kirri9,
koori9,
probs9,
rooks9,
skirr9,
biros7,
birrs7,
boors7,
brios7,
broos7,
oribi7,
poori7,
prior7,
proso7,
roops7,
sopor7,
sorbo7,
spoor7,
orris5,
4 letter words:
kirk12,
kook12,
kiwi11,
kows11,
woks11,
work11,
birk10,
bisk10,
boko10,
boks10,
book10,
bork10,
bosk10,
brik10,
kips10,
kobo10,
kobs10,
kops10,
piki10,
pook10,
pork10,
skip10,
spik10,
bowr9,
bows9,
brow9,
pows9,
prow9,
sowp9,
swob9,
swop9,
wisp9,
wops9,
bops8,
irks8,
kirs8,
kois8,
koro8,
kors8,
kris8,
oiks8,
prob8,
risk8,
roks8,
rook8,
skio8,
sook8,
iwis7,
rows7,
woos7,
bios6,
biro6,
birr6,
bois6,
boor6,
boos6,
bors6,
brio6,
bris6,
broo6,
bros6,
ibis6,
obis6,
obos6,
oops6,
orbs6,
pirs6,
piso6,
pois6,
poor6,
poos6,
proo6,
pros6,
ribs6,
rips6,
risp6,
robs6,
roop6,
soop6,
sorb6,
iris4,
roos4,
siri4,
sori4,
3 letter words:
kow10,
wok10,
bok9,
kip9,
kob9,
kop9,
bow8,
pow8,
wop8,
bop7,
irk7,
kir7,
kis7,
koi7,
kor7,
kos7,
oik7,
rok7,
sik7,
ski7,
iwi6,
row6,
sow6,
wis6,
woo6,
wos6,
bio5,
bis5,
boi5,
boo5,
bor5,
bos5,
bro5,
brr5,
obi5,
obo5,
obs5,
oop5,
ops5,
orb5,
pir5,
pis5,
poi5,
poo5,
pos5,
pro5,
psi5,
rib5,
rip5,
rob5,
sib5,
sip5,
sob5,
sop5,
ios3,
iso3,
oor3,
oos3,
ors3,
roo3,
sir3,
sri3,
2 letter words:
ki6,
ko6,
ow5,
wo5,
bi4,
bo4,
ob4,
op4,
pi4,
po4,
io2,
is2,
oi2,
oo2,
or2,
os2,
si2,
so2,