/ Dictionary / Index L low frequency: Meaning and Definition of Find definitions for: low' fre'quency Pronunciation: [key] — Radio. Radio. any frequency between 30 and 300 kilohertz. Abbr.: LF Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. low explosive low fulham Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language