The word "bonasa" is a bit tricky to spell, but it can be decoded using the International Phonetic Alphabet (IPA). The first syllable, "bo," is pronounced as /boʊ/, with a long "o" sound followed by a diphthong /ʊ/. The second syllable, "na," is pronounced as /nə/, with a schwa sound /ə/ and a silent "e" at the end. So, to spell "bonasa," it's essential to remember the diphthong in the first syllable and the schwa sound in the second syllable.