Connive
To cooperate secretly in a wrongdoing
Connoisseur
An expert
Contrite
Showing a deep regret and sorrow
Copious
Abundant
Crass
Coarse, stupid, tasteless
Credence
Belief or trust
Culinary
Having to do with the kitchen or cooking
Culmination
Attainment by anything of its highest point of degree
Cult
A fad-like devotion to a person, thing or idea
Condone
To forgive or overlook an offense by treating the wrongdoer as if he had done nothing wrong