Meaning : That time. That moment.
Example :
We will arrive before then.
We were friends from then on.
Meaning : In that case or as a consequence.
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.
Meaning : At that time.
Example :
I was young then.
Prices were lower back then.
Science as it was then taught.
Then ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Then ka matlab kya hota hai?