/ Dictionary / Index B bottom-up: Meaning and Definition of Find definitions for: bot•tom-up Pronunciation: (bot'um up'), [key] — adj. of, pertaining to, or originating with the common people, nonprofessionals, or the lower ranks of an organization: The five-day workweek was a bottom-up movement some business leaders and politicians finally supported. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bottom-up (Thesaurus) bottom time bottom-up programming Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language