もの

(Mono)

Used at the end of a sentence to provide a reason, often in an emotive or slightly childish excuse.

Connection rules

だって、お腹なかが空あいていたんだもの。

Datte, onaka ga ai te i ta n da mono.

But I was hungry, you see.

「Explaining why I ate late」

まだ子供こどもだもん、分わからないよ。

Mada kodomo da mon, wakara nai yo.

He's still a child, so he doesn't understand.

「Defending a child's mistake」