Easton's Bible Dictionary
Is rendering to every one that which is his due. It has been distinguished from equity in this respect, that while justice means merely the doing what positive law demands, equity means the doing of what is fair and right in every separate case.
Justice of God
That perfection of his nature whereby he is infinitely righteous in himself and in all he does, the righteousness of the divine nature exercised in his moral government. At first God imposes righteous laws on his creatures and executes them righteously. Justice is not an optional product of his will, but an unchangeable principle of his very nature. His legislative justice is his requiring of his rational creatures conformity in all respects to the moral law. His rectoral or distributive justice is his dealing with his accountable creatures according to the requirements of the law in rewarding or punishing them (Psalm 89:14). In remunerative justice he distributes rewards (James 1:12; 2 Timothy 4:8); in vindictive or punitive justice he inflicts punishment on account of transgression (2 Thessalonians 1:6). He cannot, as being infinitely righteous, do otherwise than regard and hate sin as intrinsically hateful and deserving of punishment. "He cannot deny himself" (2 Timothy 2:13). His essential and eternal righteousness immutably determines him to visit every sin as such with merited punishment.
Noah Webster's New International Dictionary of the English Language
1. (n.) The quality of being just; conformity to the principles of righteousness and rectitude in all things; strict performance of moral obligations; practical conformity to human or divine law; integrity in the dealings of men with each other; rectitude; equity; uprightness.
2. (a.) Conformity to truth and reality in expressing opinions and in conduct; fair representation of facts respecting merit or demerit; honesty; fidelity; impartiality; as, the justice of a description or of a judgment; historical justice.
3. (n.) The rendering to every one his due or right; just treatment; requital of desert; merited reward or punishment; that which is due to one's conduct or motives.
4. (a.) Agreeableness to right; equity; justness; as, the justice of a claim.
5. (n.) A person duly commissioned to hold courts, or to try and decide controversies and administer justice.
6. (v. t.) To administer justice to.