See enhance in Webster's New World Roget's A-Z Thesaurus II
verb
To endow with beauty and elegance by way of a notable addition:
adorn, beautify, embellish, grace, set off. See beautifulTo look good on or with:
become, flatter, suit. Idiom: put in the best light. See agree, beautifulTo make greater in intensity or severity:
aggravate, deepen, heighten, intensify, redouble. See increaseTo increase or seek to increase the importance or reputation of by favorable publicity:
ballyhoo, boost, build up, promote, publicize, puff, talk up, tout. (Informal) plug. (Slang) hype. See knowledge
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