The word "ALPHADHEC" is spelled using the International Phonetic Alphabet as /ælfədhek/. It is a made-up word, and its spelling is based on the pronunciation of its letters. The first part "ALPHA" is pronounced as /ælfə/ which is the same as the first letter of the English alphabet. The second part "DHEC" is pronounced as /dhek/ which sounds like the way the letters "D" and "C" are pronounced in the English language. Overall, the spelling of "ALPHADHEC" is a combination of these two phonetic sounds.