死んじゃ

die

→ 死ぬ
死ん to die + じゃ Completive (contracted てしまう)
verb · informal Rare #38,342
die Colloquial contraction of 死んでは, usually followed by だめ to say that someone must not die.
JA: まだ死んじゃだめだよ。
EN: You mustn't die yet.
Conjugation of 死ぬ

死んじゃダメだよ!

Don't die!

— 崖の上のポニョ (2008)

死んじゃダメだ

Don't die.

— 甘い生活 (1960)

死んじゃ駄目だ!

You mustn't die!

— Tampopo (1985)

死んじゃやだ。

Please don't die.

トム、死んじゃだめ。

Tom, you can't die.