/ Dictionary / Index P proxy: Meaning and Definition of Find definitions for: prox•y Pronunciation: (prok'sē), [key] — pl. prox•ies. the agency, function, or power of a person authorized to act as the deputy or substitute for another. the person so authorized; substitute; agent. a written authorization empowering another person to vote or act for the signer, as at a meeting of stockholders. an ally or confederate who can be relied upon to speak or act in one's behalf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: proxy (Thesaurus) proximo proxy fight Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language