/ Thesaurus / B Synonyms of borrower's card Find synonyms for: Noun1. library card, borrower's card, card, identity cardusage: a card certifying the bearer's right to use the libraryWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: industrious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language