Koperniak

== Polish == === Pronunciation === IPA(key): /kɔˈpɛr.ɲak/ Rhymes: -ɛrɲak Syllabification: Ko‧per‧niak === Proper noun === Koperniak m pers a male surname ==== Declension ==== === Proper noun === Koperniak f (indeclinable) a female surname