/ Dictionary / Index E earplug: Meaning and Definition of Find definitions for: ear•plug Pronunciation: (ēr'plug"), [key] — n. a plug of soft, pliable material inserted into the opening of the outer ear, esp. to keep out water or noise. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: earplug (Thesaurus) ear-piercing earreach Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language