Prospero
acting
affectation
airiness
ally
alter ego
analogon
analogue
angle
appearance
aspect
associate
attitudinizing
bluff
bluffing
brother
certified copy
cheat
cheating
clinquant
close copy
close match
cognate
color
coloring
companion
complement
configuration
congenator
congener
coordinate
copy
correlate
correlative
correspondent
counterfeit
counterpart
dead ringer
deception
delusion
delusiveness
disguise
dissemblance
dissembling
dissimulation
double
dummy
duplicate
ectype
effect
simulacra
colour
gloss
semblance