Home/us/used-bookused-bookUnknownSeenFamiliarMastered🇬🇧 UK/'ju:zd-bʊk/🇺🇸 USDefinitionsn.A book that has been previously owned and read; a secondhand book.二手书,旧书🧩 Root BreakdownRoot-deriveduseduse+bookother=used-bookExample Sentences← Back to us