相あい年どし

noun, noun which may take the genitive case particle 'no'

the same age

Used to say that two or more people are the same age. Often appears as あいどしだ or あいどしの. The kanji form 相年 is very rare.

See also: 同い年

• 彼かれと私わたしはあいどしです。

  He and I are the same age.