crosslinkage
interreference
correlativity
correlation
interrelationship
connection
relation
corelation
correlative
comparate
swap
betweenity
compare and contrast
opposite
tie-in
bothridial
interrelational
hyphen
miscibility
couple
interordination
duopolistic
juxtaposition
bitrochanteric
go-together
correlate
twin
interdistinguish
twinstick
linkage
pairing
ambidirectional
tertium quid
concatenation
chain
multilinked
wherebetween
dicomplemented
latter
intercorrelation
reciprocal
yoke
mixed
coupling
abutment
two sides of the same coin
correlated
remutualisation
interden
compogram