It's really really hard to guess the word. All I know is "fragrance" , ""sweetness", etc. please help me with this stuff :)
aroma: an odor arising from spices, plants, cooking, etc., especially an agreeable odor; a distinctive usually pleasant smell, esp of spices, wines, and plants.
Try Powerthesaurus.org for antonyms and synonyms, esp. for crossword puzzles (it's very good). There's always OneAcross.com.
1 A distinctive smell, especially one that is pleasant:
the scent of freshly cut hay
1.1 [mass noun] Pleasant-smelling liquid worn on the skin; perfume:
she sprayed scent over her body