/ Thesaurus / S Synonyms of sub assembly Find synonyms for: Noun1. sub-assembly, assemblyusage: a unit assembled separately but designed to fit with other units in a manufactured productWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language