/ Dictionary / Index L Labor Day: Meaning and Definition of Find definitions for: La'bor Day" Pronunciation: [key] (in the U.S.) a legal holiday, commonly the first Monday in September, in honor of labor. Cf. Labour Day. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. labor camp Labor Department Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language