also: おなじどし
noun
Used to say that two or more people are the same age. Often used with 同い年 (おないどし) as a synonym.
See also: 同い年
彼と私は同じ年です。
He and I are the same age.
同じ年の友達がたくさんいます。
I have many friends who are the same age.
Synonym meaning 'same age'. 同い年 is more colloquial and commonly used in spoken Japanese, while 同じ年 is slightly more formal or written.
Compound of 同じ (same) and 年 (year, age). The reading おなじどし shows rendaku voicing of とし to どし.