primus inter pares/ˌprieməs intə ʹpeəreez/ noun

• collective farm
• collective noun
• collective ownership
• collective unconscious
• collectivise
• collectivism
• collectivize
• collector
• collector's item
• colleen
• college
• college of education
• collegial
• collegian
• collegiate
• collegiate church
• col legno
• collenchyma
• Colles’ fracture
• collet
• collide
• collider
• collie
• collier
• colliery