The spelling of the word "boal" is quite straightforward when using the International Phonetic Alphabet (IPA). It is pronounced /bəʊl/ (buh-ohl) with the stressed syllable on the "ohl" part. The "b" represents the voiced bilabial stop or consonant, while the "əʊ" represents the diphthong sound that combines the long "o" and long "a" sounds. The final "l" represents the voiced alveolar lateral consonant. It is important to utilize IPA to ensure proper pronunciation in communication.