/ Dictionary / Index R Rubʿ al Khali: Meaning and Definition of Find definitions for: Rubع al Kha•li Pronunciation: (Arab. roob" äl khä'lē Eng. roob" al kä'lē), [key] a desert in S Arabia, N of Hadhramaut and extending from Yemen to Oman. ab. 250,000 sq. mi. (647,500 sq. km). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rubaiyat stanza Rubarth's disease Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language