/ Dictionary / Index H hearing-ear dog: Meaning and Definition of Find definitions for: hear'ing-ear' dog" Pronunciation: (hēr'ing-ēr"), [key] a dog that has been trained to alert a hearing-impaired person to sounds, as a telephone ringing or dangerous noises. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hearing aid hearing-impaired Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language