/ Dictionary / Index I insuring clause: Meaning and Definition of Find definitions for: insur'ing clause" Pronunciation: [key] the clause in an insurance policy setting forth the kind and degree of coverage granted by the insurer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. insurgent insurmountable Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language