/ Dictionary / Index J Johnstown: Meaning and Definition of Find definitions for: Johns•town Pronunciation: ( jonz'toun"), [key] — n. a city in SW Pennsylvania: disastrous flood 1889. 35,496. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Johnston's organ John the Baptist Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language