千禧年 Traditional form: 千禧年 Pinyin (reading): qiānxǐnián Definitions: millennium Characters: 千 - thousand; many, numerous; very 禧 - happiness; congratulations 年 - year; anniversary; a person's age Traditional characters: 千 - thousand; many, numerous; very 禧 - happiness; congratulations 年 - year; anniversary; a person's age