/ Thesaurus / C Synonyms of customs Find synonyms for: Noun1. customs, customs duty, custom, impost, duty, tariffusage: money collected under a tariffNoun1. customs, customs duty, custom, impost, duty, tariffusage: accepted or habitual practice2. custom, usage, usance, practice, pattern, survivalusage: a specific practice of long standing3. custom, tradition, practiceusage: money collected under a tariff4. customs, customs duty, custom, impost, duty, tariffusage: habitual patronage; "I have given this tailor my custom for many years"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language