/ Dictionary / Index L Lag b'Omer: Meaning and Definition of Find definitions for: Lag b'O•mer Pronunciation: (läg bō'mur, bu-ō'mer), [key] a Jewish festival celebrated on the 18th day of Iyar, being the 33rd day of the Omer, traditionally in commemoration of the end of the plague that killed Rabbi Akiba's students or of the bravery of Bar Kokba. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lag bolt lagen Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language