The spelling of the word "Aceuedo" is determined by the Spanish alphabet, which includes the letters "a, c, e, u, d, and o." The correct pronunciation is "a-say-doh," with the stressed syllable on the second syllable. The vowel "a" is pronounced as in "apple," while "e" is pronounced as in "egg." The consonant "c" is pronounced like an "s" sound before the vowels "e" and "i," while "u" is silent in this word. The letter "d" is pronounced as in "dog," and "o" is pronounced as in "go."