#contra# against, contrary to
#contrario# contrary; #por el# or #al ——# on the contrary; #llevar la contraria a uno# to oppose one, be vexed with one
#convencer# to convince
#convertir# to convert, change
#conyugal# conjugal
#corazón# m. heart
#corazoncito# little heart
#corbata# cravat, necktie
#cordón# m. cord, string
#correr# to run, elapse; #no corre prisa# there is no hurry