Example : We will arrive before then.
We were friends from then on.

Example : Then he left.
Go left first, then right.
First came lightning, then thunder.
We watched the late movie and then went to bed.
And so home and to bed.

Synonyms : and so, so

Example : If he didn't take it, then who did?.
Keep it then if you want to.
The case, then, is closed.
You've made up your mind then?.
Then you'll be rich.

Example : I was young then.
Prices were lower back then.
Science as it was then taught.

Example : The then president.