/ Dictionary / Index P Philby: Meaning and Definition of Find definitions for: Phil•by Pronunciation: (fil'bē), [key] (“Kim”), born 1912, British double agent: defected to U.S.S.R. 1963. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. philately -phile Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language