The spelling of the word "gugu" can be explained through its IPA phonetic transcription. The first syllable is pronounced as "gŭ" with a short u sound, while the second syllable is pronounced as "gu" with a long u sound. This makes the word "gugu" a two-syllable word with a stress on the second syllable. The spelling of the word follows the English language conventions, where two consecutive vowels create a long vowel sound. Overall, "gugu" is a simple and easy-to-spell word in English.