sev·enth1 /ˈsevənθ/ ●●● S3 W3 adjectiveadj 1 coming after six other things in a series 第七(个)的 in the seventh century 在七世纪
her seventh birthday 她的七岁生日
2. be in seventh heaven informal to be extremely happy 非常快活,极为幸福be in seventh heaven• We got Darren a puppy for Christmas, and he was in seventh heaven.• But Leonora was in seventh heaven.• He was in seventh heaven, so excited.• My good friends of masher persuasion are in seventh heaven when they have the opportunity of admiring eight pretty faces. —seventh pronoun I’m planning to leave on the seventh (=the seventh day of the month). 我打算七号走。
the seventh• I'll call you when I get back on the seventh.