N3 — outside your level filter

だって

だってdatteN3casual

だって

casual reason-opener ('cause, X); casual "even N"

「なんで食たべないの?」「だって、お腹なかいっぱいなんだもん。」

"nan de tabenai no?" "datte, onaka ippai nan da mon."

"Why aren't you eating?" "'Cause I'm already full!" casual

そんなの、子供こどもだって知しってるよ。

sonna no, kodomo datte shitteru yo.

Come on, even kids know that. casual

Same meaning13

All examples4

'cause, X; but, X — a casual excuse pushed back at a complaint

  1. 「なんで食たべないの?」「だって、お腹なかいっぱいなんだもん。」

    "nan de tabenai no?" "datte, onaka ippai nan da mon."

    "Why aren't you eating?" "'Cause I'm already full!" casual

  2. 遅刻ちこくしたのは仕方しかたないよ、だって電車でんしゃが止とまってたんだから。

    chikoku shita no wa shikata nai yo, datte densha ga tomatteta n da kara.

    Being late couldn't be helped — the trains had stopped, after all. casual

even N; N too — a casual equivalent of でも/さえ, often defensive or emphatic

  1. そんなの、子供こどもだって知しってるよ。

    sonna no, kodomo datte shitteru yo.

    Come on, even kids know that. casual

  2. このくらいの問題もんだいなら、初心者しょしんしゃだって解とけるはずだ。

    kono kurai no mondai nara, shoshinsha datte tokeru hazu da.

    Even a beginner should be able to solve a problem this simple. neutral

How it's formed2