/ Dictionary / Index N Neilson: Meaning and Definition of Find definitions for: Neil•son Pronunciation: (nēl'sun), [key] — n. 1869–1946, U.S. educator and lexicographer, born in Scotland. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Neilah* Nei Mongol Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language