/ Thesaurus / H Synonyms of hierarchical classification system Find synonyms for: Noun1. hierarchical classification system, classification systemusage: a classification system where entries are arranged based on some hierarchical structureWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inane Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language