/ Dictionary / Index H high command: Meaning and Definition of Find definitions for: high' command' Pronunciation: [key] the leadership or highest authority of a military command or other organization. the highest headquarters of a military force. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. high comedy high commissioner Related Content Daily Word Quiz: longevity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language