/ Dictionary / Index G girl guide: Meaning and Definition of Find definitions for: girl' guide' Pronunciation: [key] (sometimes caps.) a member of a British organization of girlsfounded in England by Lord Robert S. S. Baden-Powell and his sister Lady Agnes as a sister organization of the Girl Scouts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. girlfriend girlhood Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language