/ Dictionary / Index L Libby: Meaning and Definition of Find definitions for: Lib•by Pronunciation: (lib'ē), [key] — n. 1908–80, U.S. chemist: Nobel prize 1960. a female given name, form of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: libby (Thesaurus) libber libel Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language