See also: buna English Etymology 1 From butadiene and Na (“chemical symbol for sodium”). Noun Buna (countable and uncountable, plural Bunas) (historical) Any of an early generation of synthetic polybutadiene rubbers produced using sodium as a catalyst. Etymology 2 Proper noun Buna English Wikipedia has an article on:Buna languageWikipedia A Torricelli language of East Sepik Province, Papua New Guinea. Etymology 3 Proper noun Buna Synonym of Mbum (“a language of Cameroon”) Etymology 4 English Wikipedia has an article on:BunaWikipedia Proper noun Buna A census-designated place in Jasper County, Texas, United States, named after Buna Corley. Anagrams Baun, Banu, Anbu, Abun, Nabu, Nuba, abun Albanian Proper noun Buna definite nominative singular of BunëWikiwand - on Seamless Wikipedia browsing. On steroids.