蝴蝶用英语说 butterfly。其来源是来自古英语，其中“buttorfleoge”的意思是“黄色的蝴蝶”。
一些英文例句及其中文翻译如下：
The butterfly fluttered its wings. (蝴蝶在振动着它的翅膀)
She released the butterfly from the jar. (她把蝴蝶从罐子里放出来)
The butterfly garden was full of colorful insects. (蝴蝶花园里到处都是五颜六色的昆虫)
He watched the butterfly fly away. (他看着蝴蝶飞走)