common
associated
associational
civic
civil
coacting
coactive
coadjutant
coadjuvant
coalitional
coefficient
collaborative
collective
collectivist
collectivistic
collusive
combined
commensal
communalist
communalistic
communist
communistic
communitarian
commutual
concerted
concordant
concurrent
concurring
conjoint
conniving
cooperant
cooperating
cooperative
cosmopolitan
ecumenic
fellow
general
harmonious
harmonized
in common
international
joint
mutual
national
noncompetitive
organizational
popular
public
reciprocal
agricultural
colonial
ecclesiastical
ethical
ethnic
inner
municipal
tribal
monsoonal
tribunal