/ Thesaurus / S Synonyms of special assessment Find synonyms for: Noun1. special assessment, tax, taxation, revenue enhancementusage: an additional tax levied on private property for public improvements that enhance the value of the propertyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language