/ Dictionary / Index F fan window: Meaning and Definition of Find definitions for: fan' win"dow Pronunciation: [key] — Archit. Archit. a window having a fanlike form with radiating sash bars, used esp. as a fanlight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fanweed fanwise Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language