/ Dictionary / Index L lumbering: Meaning and Definition of Find definitions for: lum•ber•ing Pronunciation: (lum'bur-ing), [key] — n. the trade or business of cutting and preparing lumber. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lumbering (Thesaurus) lumber lumberjack 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