coadjutant (?.)

• aid
• aide
• aide-de-camp
• coacting
• coactive
• coadjutor
• coadjuvant
• coefficient
• collaborative
• collective
• collectivist
• collectivistic
• collusive
• combine
• combined
• commensal
• common
• communal
• communalist
• communalistic
• communist
• communistic
• communitarian
• concerted
• concordant
• concur
• concurrent
• concurring
• conjoin
• conniving
• cooperant
• cooperate
• cooperating
• cooperative
• ecumenic
• fellow
• harmonious
• harmonized
• joint
• league
• lieutenant
• mutual
• noncompetitive
• reciprocal
• symbiotic
• synergetic
• synergic
• synergistic
• uncompetitive