それじゃ

conjunction

so; then

Indicates a logical conclusion or consequence, like 'in that case' or 'so'. Colloquial.

• それじゃ、問もん題だいないね。

  So, there's no problem then.

• それじゃ、私わたしがやります。

  Then I'll do it.

expression

if that's the case; in that case

Expresses a conditional or hypothetical situation; often used when drawing a conclusion from what was just said. Colloquial.

• それじゃ、話はなしが違ちがってくる。

  If that's the case, it changes things.

• それじゃ、仕し方かたないね。

  In that case, it can't be helped.

interjection

bye then; see you

Casual parting phrase, often used with a rising intonation. Equivalent to 'じゃあね' or 'それじゃあね'.

• それじゃ、また後あとで！

  Bye then, see you later!