it usually means that when some one tells another person a secret, and the other person says "i'll take it to the grave" they basically mean that they wont tell anyone.
Take This To Your Grave -fall out boy
Grave
if you mean grave is in where the dead rest its : tumba if you mean grave as in "shes grave danger" its : grave but you say the "a" like "ahh" and you say the "e" like "eh"
Take This to Your Grave was created on 2003-05-06.
grave sincerity means dead serious
this is still as serious / grave / important
The grave/pantheon
solemn
Rest In Peace
you grave a spoon
From the cradle to the grave means from birth until death; a person's entire life.
When you cheat the grave, you stay alive! Maybe you were somehow supposed to die or almost died, but instead of dying, you cheated the grave. You lived!