Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. To enhance something means to improve its value, quality, or attractiveness. They'll be keen to enhance their reputation abroad. to improve the quality, amount, or strength of something: 2. to improve the quality, amount, or…. To improve or augment, especially in effectiveness, value, or attractiveness: exercises that enhance cardiovascular health; spices that enhance the flavor of a sauce; renovations that enhance the … en•hance /ɛnˈhæns/ v. [~ + object], -hanced, -hanc•ing. to increase the value, attractiveness, or quality of; improve: A fine wine will enhance a delicious meal. [uncountable * countable] … Definition of enhance. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels. Enhance definition: To improve or augment, especially in effectiveness, value, or attractiveness.