Multiple choice Which of the following words has got a prefix that means “completely”? Anoint Bartender Congest Denude Reveal answer Fill a bubble to check yourself D Correct answer Explanation Denude is a composite word that means “to strip of clothing completely”. “De” means “completely”. In different contexts, however, 'de' may also mean 'off' (derail); 'down' (decline); and 'undo' (decode).