What does ‘vice’ mean?

If Christian virtues are the fruit of the work of the Holy Trinity in the life of the believer, offered to him as a promise of heaven; then vices, conversely, are the fruit of the denial and rejection of divine grace, whereby a person deprives himself of communion with God and imagines that the virtues are merely the practice of moral conduct, thus making the virtuous life nothing more than a flashy outward façade.