The spelling of the word "tatham" may seem confusing at first, but its pronunciation can be explained using the International Phonetic Alphabet (IPA). The word is pronounced as /ˈtætəm/, with emphasis on the first syllable. The "th" in "tatham" is pronounced as a voiceless dental fricative, which means you need to stick your tongue out gently between your front teeth and blow air. Moreover, the "a" in "tatham" is pronounced as a short vowel sound, making the first syllable sound like "tat." Overall, "tatham" is pronounced as "TAT-um".