1
- a chain or garland of flowers, leaves, or ribbons, hung in a curve as a decoration花彩。
1.1
- a carved or moulded ornament representing such a garland（雕刻或浇铸成的）花环饰物; 垂花雕饰。
2
- a Eurasian butterfly or moth patterned with dark arcs on a lighter background欧亚蝴蝶（或蛾）：
2.1
- a large yellowish butterfly with black and red markings (Zerynthia and other genera, family Papilionidae).凤蝶（亚凤蝶属及其他属, 凤蝶科）。
2.2
- a small brown moth (Apoda avellana, family Limacodidae).大甲蛾（拉丁名Apoda avellana, 刺蛾科）。
with obj.(常作 be festooned with)
- adorn (a place) with chains, garlands, or other decorations用花彩装点（某处）：
the staffroom was festooned with balloons and streamers.
教师休息室里装点着气球和横幅。
词源
mid 17th cent.: from French feston, from Italian festone 'festal ornament', from festum, (plural) festa 'feast'.