/ Dictionary / Index D data set: Meaning and Definition of Find definitions for: da'ta set" Pronunciation: [key] — Computers. Computers. a collection of data records for computer processing. modem. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. datary datcha Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language