The spelling of the word "otti" may seem unusual, but it follows the rules of English phonetics. Using IPA phonetic transcription can help explain its spelling. The first syllable is pronounced as "ɒt", which represents the short "o" sound followed by the "t" sound. The second syllable is pronounced as "i", representing the short "i" sound. When put together, "otti" is pronounced as "ɒti". It is important to understand phonetics in order to correctly pronounce words in English.