Words formed from any letters in bicolor plus optional blank

d -

rood₅

e -

riel₅

rile₅

robe₇

role₅

f -

rolf₈

roof₇

k -

rick₁₁

rock₁₁

rook₈

l -

rill₆

roll₆

m -

room₇

s -

robs₇

rocs₇

silo₅

slob₈

soil₅

soli₅

solo₅

sorb₇

sori₄

t -

riot₄

root₄

roti₄

rotl₅

roto₄

tirl₅

tiro₄

toil₅

tool₅

torc₇

tori₄

toro₄

trio₄

u -

uric₈

v -

viol₉

virl₉

w -

wool₈

z -

zoic₁₆

zori₁₃