The name "Heidie" is a variation of the more common name "Heidi". The spelling of "Heidie" reflects the pronunciation of the name with a longer "ee" sound at the end. The IPA phonetic transcription for "Heidie" would be /ˈhaɪ.di/. The first syllable is pronounced with the long "i" sound, the second syllable is pronounced with a short "i" sound, and the final syllable is pronounced with a long "ee" sound. Though less common than the traditional spelling, "Heidie" is a valid alternative.