Pneumonoultramicroscopicsilicovolcanoconiosis

//ˌnjuːmə.nəʊ.ʌl.tɹə.maɪ.kɹəʊˌskɒ.pɪkˌsɪ.lɪ.kəʊ.vɒl.keɪ.nəʊ.kəʊ.niˈəʊ.sɪs//

Pronunciation

US //ˌnjuːmə.nəʊ.ʌl.tɹə.maɪ.kɹəʊˌskɒ.pɪkˌsɪ.lɪ.kəʊ.vɒl.keɪ.nəʊ.kəʊ.niˈəʊ.sɪs//
US //nuˌmɑ.noʊ.ʌl.tɹə.maɪ.kɹoʊˈskɑ.pɪkˌsɪ.lɪ.koʊ.vɑl.kæ.noʊ.kä.niˈoʊ.sɪs//

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.