/priviyz/ Those who are partakers or have an interest in any action or thing, or any relation to another. Brown v. Fidelity Union Trust Co., 126 N.J.Eq. 406, 9 A.2d 311, 326; Hamelik v. Sypek, 152 Misc. 799, 274 N.Y.S. 875.
They are of six kinds:
(1) Privies of blood; such as the heir to his ancestor.
(2) Privies in representation; as executors or administrators to their deceased testator or intestate.
(3) Privies in estate; as grantor and grantee, lessor and lessee, assignor and assignee, etc.
(4) Privies in respect to contract.
(5) Privies in respect of estate and contract; as where the lessee assigns his interest, but the contract between lessor and lessee continues, the lessor not having accepted of the assignee.
(6) Privies in law; as the lord by escheat, a tenant by the curtesy, or in dower, the incumbent of a benefice, a husband suing or defending in right of his wife, etc.
"Privies," in the sense that they are bound by the judgment, are those who acquired an interest in the subject-matter after the rendition of the judgment.
"Privies" to a judgment are those whose succession to the rights of property affected occurs after the institution of the suit and form a party to it

Black's law dictionary. . 1990.