Gaily is an adverb that is used to describe a cheerful and light-hearted manner. It can be used to describe the way someone moves, speaks, or behaves. The term can also be used to describe something that is done in a carefree and happy way. The crossword solutions for the term gaily are BRIGHTLY (8 letters), MERRILY (7 letters), and AIRILY (6 letters). BRIGHTLY is an adverb that means in a bright and cheerful manner. MERRILY is an adverb that means in a merry and joyous manner. AIRILY is an adverb that means in a light and graceful manner. All three of these words can be used to describe the same concept of being gaily.