The Collaborative International Dictionary
Identities
Identity \I*den"ti*ty\, n.; pl. Identities. [F. identit['e], LL. identitas, fr. L. idem the same, from the root of is he, that; cf. Skr. idam this. Cf. Item.]
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The state or quality of being identical, or the same; sameness.
Identity is a relation between our cognitions of a thing, not between things themselves.
--Sir W. Hamilton. The condition of being the same with something described or asserted, or of possessing a character claimed; as, to establish the identity of stolen goods.
(Math.) An identical equation.
Wiktionary
identities
n. (plural of identity English)