The spelling of the phrase "in dict" is quite simple once you understand its origin. The phrase is actually a shortened version of the Latin phrase "in dictum" which means "in the words (of)". The correct spelling of this phrase is "indict", and it is pronounced as [ɪnˈdaɪt]. The IPA phonetic transcription reveals the pronunciation with the first syllable being pronounced as "in" with a short "i" sound, and the second syllable being pronounced as "dyt". So, if you come across the spelling "in dict", you now know it is actually spelled "indict".