A. 그러자 B. (B is a reaction that follows A)
thereupon, and then, at that
Example
제가 웃었어요. 그러자 아기도 따라 웃었어요.
I smiled. At that, the baby smiled too.
Word parts
그러다 'to do so' + -자 'as soon as'.
Good to know
Only for past events in stories; for 'if you do that' use 그러면 instead.
Related words