ôpuka

== Silesian == === Etymology === Borrowed from Czech opuka. Compare Polish opoka. === Pronunciation === IPA(key): /wɔˈpu.ka/ Rhymes: -uka Syllabification: ô‧pu‧ka === Noun === ôpuka f low-quality coal collected at a spoil tip ==== Derived terms ==== === Further reading === Eugeniusz Kosmała (2023), “opuka”, in Dykcjōnôrz Ślonsko-Polski (in Silesian), o, page 45 Bogdan Kallus (2020), “ôpuka”, in Słownik Gōrnoślōnskij Gŏdki, IV edition, Chorzów: Pro Loquela Silesiana, →ISBN, page 354