/ Dictionary / Index R reservationist: Meaning and Definition of Find definitions for: res•er•va•tion•ist Pronunciation: (rez"ur-vā'shu-nist), [key] — n. a person who makes or takes reservations, as at an airline office; reservation clerk. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reservation re-serve Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language