The spelling "IDIA" can be confusing as it does not adhere to traditional English phonetic rules. However, the word can be explained using the International Phonetic Alphabet (IPA). The first sound is pronounced as /iː/, which is a long vowel sound similar to the "ee" sound in "meet". The second sound is pronounced as /d/, which is a voiced dental plosive sound made by placing the tip of the tongue behind the top front teeth. Finally, the third sound is pronounced as /jə/, which is a short vowel sound similar to the "a" sound in "sofa".