The spelling of the word "tamachi" can be explained using the International Phonetic Alphabet (IPA) transcription. The first syllable "ta" is pronounced as /tɑː/, with a long "a" sound. The second syllable "ma" is pronounced as /mɑː/, with another long "a" sound. Finally, the last syllable "chi" is pronounced as /tʃiː/. Therefore, the complete pronunciation of "tamachi" is /ˈtɑː.mɑː.tʃiː/. The spelling of this word may be challenging for some individuals because of the use of long vowel sounds and uncommon letter combinations.