1. in that way; thus; such
concerning the actions of the listener or concerning the ideas expressed or understood by the listener; with a neg. sentence, implies that something isn't as much as one might think
今度から、絶対にそうするよ。From now on, I will definitely do that.
2. so; the same; that's the case
used to express agreement with something said
いや、まあ、確かにそうなんだが。Well, I mean, that's certainly true, but...