What do you mean by saying "Jesus Christ died for us ?

What do you mean by saying "Jesus Christ died for us ?
The expression means that all men are sinners, condemned by God's righteous judgement; that Jesus Christ was made like us in every respect, except that He never sinned; and He took our place in the judgement. He took our place on the Cross, He died for us so that by His death we might receive forgiveness and grace; so that we who deserved to be condemned to death might rather enter on a new life, adopted as children of God. (cf. Q. 80).