At a glance
それじゃ means "well then" or "in that case". It starts sentence B, which is a decision, suggestion, request or question based on what was just said in A.
A。それじゃ、B。
雨ですね。それじゃ、タクシーで行きましょう。 It's raining. Well then, let's go by taxi.
How to form it
それじゃ goes at the start of sentence B, usually followed by a comma. It has three common forms:
| Form | Where it goes | Register |
|---|---|---|
| それでは | Start of B | Formal: speeches, announcements, writing |
| それじゃ | Start of B | Everyday speech, casual or polite |
| じゃあ / じゃ | Start of B | Casual, very common in conversation |
じゃ is a short form of では, so それじゃ is a shorter, more casual way of saying それでは.