/ Thesaurus / T Synonyms of trusteeship council Find synonyms for: Noun1. Trusteeship Council, TC, councilusage: a permanent council of the United Nations that commissions a country (or countries) to undertake the administration of a territoryWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language