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The Spanish language uses the same vowels that are used in the English language, "a," "e," "i," "o," and "u."  There are five vowel sounds that you should become familiar with.  Unlike the English language, each of these vowels always makes the same sound in every single word.  Also remember that vowels are never silent when you are pronouncing Spanish words. " The letter "a" in Spanish is sounds like the "a" in the word "father." If a Spanish word has more than one "a," all of the "a"s will make the same sound (e.g. mañana). "Mañana" sounds like "mah-nya-nah"    The long "a" found in words such as "blame" or "name" is never used when you speak Spanish. " The letter "e" in Spanish sounds like the "e" in "weigh" or the "a" in the word "late."  For example, "pero" should sound like you are saying "pay-ro." The long "e" sound in words like "need" or "speed" are not used when you are speaking Spanish. "  The letter "i" in Spanish sounds like the "i" in the word "machine."  The Spanish "i" also sounds like the long "e" in the word "be."  Never pronounce "i" with the sound used in the word "hide," "if," or "hit." For example, "hija" sounds like "ee-ha." " The letter "o" in Spanish is always pronounced as a long "o" in the English language.  Spanish "o"s sound like the "o" in the word "no."  Avoid pronouncing the "o" that is used in the word "opportunity" and "other."  For example, "como" sounds like "koh-moh." "  The letter "u" in Spanish is pronounced like the "u" in the word "lunar."  This letter only makes one sound in the Spanish language.  In English, words that begin with the letter "u" (e.g. useful, utilize) make a "y" sound.  However, do not use this pronunciation of the letter "u" when you pronounce Spanish words. "Cúrcuma" sounds like "koor-koo-mah." The letter "u" never makes the sound found in the word "flutter" or "ultimate" either. Native English speakers have a tendency to drag out vowel sounds.  Spanish vowels should be pronounced using short sounds.  For example, in English you may pronounce the word "hey," as "heeeeey."  Instead, keep the pronunciation short as if you are saying "late."  Elongating the sound of your vowels when you speak Spanish will alert others that you are not a native Spanish speaker and can make it more difficult for other people to understand what you are saying. A diphthong is two vowels next to each other.  When you see this, pronounce the sound of the first vowel and then pronounce the sound of the second vowel.  Practice until you can say the two sounds as one syllable.  You will have to make the sounds quickly and not drag out the sounds of each individual vowel. For example, "feo" sounds like "feh-oh,"cuando" sounds like "kooahn-doh", and "suizo" sounds like "sooee-soh."

Summary:
Know the five vowels. Say the letter "a. Pronounce the letter "e. Practice saying the letter "i. Say the letter "o. Be careful with the letter "u. Do not drag out the sound. Practice diphthongs.