/ Dictionary / Index W Windows: Meaning and Definition of Find definitions for: Win•dows Pronunciation: (win'dōz), [key] any of several microcomputer operating systems or environments featuring a graphical user interface. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: windows (Thesaurus) windowpane shell window sash Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language