multiple
plural
Janus-like
ambidextrous
bifacial
bifold
biform
bifurcated
bilateral
binary
binate
biparous
bipartisan
bipartite
bivalent
conduplicate
dichotomous
disomatous
double
double-barreled
double-faced
duadic
dualistic
duple
duplex
duplicate
duplicated
dyadic
geminate
geminated
identical
matched
paired
second
secondary
twain
twin
twinned
two
two-faced
two-level
two-ply
two-sided
two-story
twofold
alternate
built-in
digital
electrical
optical
respective
Abdul
Boole
Dzhambul
Ewell
Greuel
Istanbul
Jewel
Joule
Poole
Rahul
Raul
Sewall
Sewell
Yule
accrual
boule
brule
buhl
cool
crewel
cruel
drool
duel
dule
fool
fuel
ghoul
home-school
jewel
joule
juel
kool
misrule
mule
pool
preschool
refuel
renewal
retool
reul
reule
rule
school
spool
stool
supercool
tool
tuel
uncool
yule