N5 — outside your level filter
well then; in that case — takes the last turn as settled and moves on
「今日はちょっと無理なんだ。」「じゃあ、明日の夕方は？」
"kyou wa chotto muri na n da." "jaa, ashita no yuugata wa?"
"I can't make it today." "Well then, how about tomorrow evening?" casual
じゃ、また来週ね。
ja, mata raishuu ne.
Right, see you next week. casual
Variants
じゃjacontraction
the unlengthened form — quicker and more offhand, and the usual shape in a parting じゃ、また.
ではdehaformal
the full form behind じゃあ — meetings, announcements and writing; では、始めます where じゃあ、始めます would be too loose.
それではsoredehaformal
では with its demonstrative restored — the most deliberate of the set, used to mark a change of phase in ceremonies and formal proceedings.
じゃあ
じゃあjaaN5casual