RIGHT(S) (noun)

. . . –n.
19. a just claim or title, whether legal, prescriptive, or moral: You have a right to say what you please.
20. Sometimes, rights. that which is due to anyone by just claim, legal guarantees, moral principles, etc.: women's rights; Freedom of speech is a right of all Americans.
21. adherence or obedience to moral and legal principles and authority.
22. that which is morally, legally, or ethically proper: to know right from wrong.
23. a moral, ethical, or legal principle considered as an underlying cause of truth, justice, morality, or ethics.
. . .
39. by rights, in fairness; justly: You should by rights have been asked your opinion on the matter.
41. in the right, having the support of reason or law; correct: It pays to be stubborn when one is in the right.

* Excerpted from the Random House Webster's Unabridged Dictionary 3.0.