The spelling of "TADIC" can be broken down using IPA phonetic transcription. The first syllable is pronounced with a "t" sound, followed by the letter "a" pronounced as "æ". The second syllable is pronounced with a "d" sound, followed by the long "i" sound represented by the letter "i". The final syllable is pronounced with a soft "c" sound spelled as "ʧ". Therefore, the correct spelling of this name is "TADIC" with the emphasis on the first syllable.