/ Dictionary / Index D demijohn: Meaning and Definition of Find definitions for: dem•i•john Pronunciation: (dem'i-jon"), [key] — n. a large bottle having a short, narrow neck, and usually being encased in wickerwork. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: demijohn (Thesaurus) demi-hunter demilitarize Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language