The spelling of the word "Swinefish" may seem peculiar at first glance. However, it can be explained using the IPA phonetic transcription. The first syllable "swine" is pronounced as /swaɪn/, which is similar to the word "swine" referring to a pig. The second syllable "fish" is pronounced as /fɪʃ/, which is the common spelling for a type of aquatic animal. Thus, the combination of these two syllables creates the phonetic spelling of "Swinefish" as /swaɪnfɪʃ/.