zenithEnglishMerriam-Webster Dictionaryum' aria-hidden='true'>1 : a heavy coarse durable cotton twill woven from colored yarnsspecifically : blue denim2 dungarees \ ˌdəŋ-gə-ˈrēz , ˈdəŋ-gə-ˌrēz \ plural : clothes made usually of blue denim