so; therefore; and (as a result) — a conjunction used to state a result or consequence based on what was just said.
雨が降っていた。それで試合は中止になった。
It was raining. So the game was cancelled.
最近忙しかった。それで連絡が遅れてしまいました。
I've been busy recently, so I was slow to get in touch.
それで、次のステップは何ですか？
So, what's the next step?