年が

age

→ 年
phrase Rare #23,905
age 年が is 年 (age) followed by が, which marks it as the subject. It commonly appears in expressions such as 年が下だ (to be younger) and 年がいっている (to be old).
JA: 彼は私より年が下です。
EN: He is younger than me.

あいつは俺より年がだよ

He's younger than me.

まもなく新しい年がやってくる

The new year is just around the corner.

日が月が年が流れていった

Days, months, and years passed by.

— アメリ (2001)

私の年がわかりますか

Do you know how old I am?

私の父は年が若い

My father is young.