/ Dictionary / Index L live wire: Meaning and Definition of Find definitions for: live' wire' Pronunciation: (līv), [key] — Informal. Informal. an energetic, keenly alert person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. livetrap liveyer Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language