/ Dictionary / Index A assembly plant: Meaning and Definition of Find definitions for: assem'bly plant" Pronunciation: [key] a factory where parts for a complete unit are put together, as in automobile manufacturing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. assemblyperson assembly routine Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language