/ Dictionary / Index R Rollo: Meaning and Definition of Find definitions for: Rol•lo Pronunciation: (rol'ō), [key] — n. Also calleda.d.c860–931?, Norse chieftain: 1st duke of Normandy 911?. a male given name, form of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rollo (Thesaurus) rollmop rollock Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language