gai·e·ty
noun/ˈɡeɪəti/
/ˈɡeɪəti/
[uncountable] (old-fashioned)- the state of being cheerful and full of fun
快乐；愉快；高兴 - The colourful flags added to the gaiety of the occasion.
彩旗增添了盛会的欢乐气氛。
Word Originmid 17th cent.: from French gaieté, from gai, of unknown origin. - The colourful flags added to the gaiety of the occasion.