connective N3 common casualpolitewritten

〜に当たる — to correspond to / be equivalent to ~

〜に当たる・にあたる

Meaning

corresponds to ~ / is equivalent to ~ — X occupies the same position, role, or value as Y

父ちちの兄あには、私わたしにとって伯父おじに当あたる。

My father's older brother is my uncle (corresponds to 'uncle' for me).

Attaches to	Form	Example
Noun に + 当あたる	N に当あたる	1ドルは約やく150円えんに当あたる (one dollar is equivalent to about 150 yen)

この言葉ことばは英語えいごの "thank you" に当あたる。

This word corresponds to English "thank you."

今年ことしは創立そうりつ五十周年ごじゅっしゅうねんに当あたる。

This year falls on the 50th anniversary of the founding.

〜にあたって・にあたり is a separate, formal use meaning 'on the occasion of ~' (開会かいかいにあたって挨拶あいさつする). The base verb 当あたる also means 'to hit' or 'to be correct.'

Jengo shows 〜に当たる the way you actually meet it: inside real Japanese sentences, so it sticks instead of staying an abstract rule.

Sources Compiled from published Japanese grammar references.