The word "Eifel" is a proper noun that refers to a mountain range in western Germany. In IPA phonetic transcription, it is pronounced as /aɪfəl/. The "Ei" diphthong is pronounced as a long "i" sound followed by a short "e" sound. The "f" is pronounced as the voiceless labiodental fricative, and the "e" at the end is pronounced as a schwa sound. The correct spelling of the word "Eifel" is important for accurate communication and understanding of its meaning.
A district on the lower Rhine celebrated in geology for its recent volcanic rocks, its brown coal, and other deposits, and for its fossils.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.