Hypopteron, pronounced /haɪˈpɒptərən/, is a noun used in linguistics to refer to a sentence with a missing verb. The spelling of hypopteron can be broken down phonetically as "hahy-pawp-tuh-ruhn." The first syllable "hahy" is pronounced like "high," the second "pawp" sounds like "popped," the third "tuh" rhymes with "duh," and the final three letters "ruhn" are pronounced like "run." This unique word is rarely used in everyday language, but it is important to understand for those studying linguistics.