名詞 seventh:

1. position seven in a countable series of things
2. one part in seven equal parts
   同義詞：one-seventh
3. the musical interval between one note and another seven notes away from it

形容詞 seventh:

1. coming next after the sixth and just before the eighth in position
   同義詞：7th

1. Just give him a bucket and spade and he's in seventh heaven!
   只要給他一個桶子和一把鏟子，他就高興極了！
2. He was laid out in the seventh round.
   他在第七回合中被打倒了。
3. A chord consisting of a root with its third, seventh, and ninth.
   九和弦由第三、第七和第九三個基礎音組成的和弦
4. It has just entered the seventh edition.
   它剛出版了第七版。
5. The child was in his seventh heaven with his new toys.
   那小孩玩著新玩具真是快樂極了。