(usu + on/upon) to be determined by or based on some condition or action

It all depends on what you mean by ‘correct’

(usu + on/upon) to place reliance or trust in (a claim, statement, etc)

That certain kings reigned, and certain battles were fought, we can depend upon as true; but all the colouring, all the philosophy of history is conjecture — Dr Johnson

(+ on/upon) to rely on (somebody) for assistance, financial support, etc

I have to depend on my neighbours a good deal

archaic or literary to hang down