The spelling of the word "guseinov" can be explained using the International Phonetic Alphabet (IPA). The word is spelled /ɡuːseɪnov/, with the "g" pronounced as a voiced velar stop (/ɡ/) followed by a long "u" vowel sound (/uː/). The "s" is pronounced as a voiceless alveolar fricative (/s/), the "e" is pronounced as a long "a" sound (/eɪ/), and the "i" is pronounced as a short "i" sound (/ɪ/). Finally, the "n" is pronounced as a voiced alveolar nasal consonant (/n/), and the "o" is pronounced as a short "o" sound (/əv/).