cuff, v. [box], [slap], [smite], [strike], buffet.
cull, n. cully, [dupe], [gull].
culprit, n. [offender], malefactor, delinquent, criminal [sinner].
cultivable, a. [tillable], arable, culturable.
cultivate, v. [till].
cultivation, n. tillage.
culture, n. [cultivation], tillage; [refinement], enlightenment, [education].
cultured, a. [refined], [educated], enlightened.
cumbersome, a. burdensome, [troublesome], [unwieldy], [unmanageable].
cunning, a. [artful], [crafty], [sly], [wily], [arch], [designing], [deceitful], [intriguing]; [curious], [ingenious]; [skillful], [dexterous].