The spelling of the word "Overson" can be explained using the International Phonetic Alphabet (IPA). The IPA transcription of "Overson" is /oʊvərsən/. The "o" represents the long "o" sound, the "v" represents the "v" sound, the "ə" represents the "uh" sound, the "r" represents the "r" sound, the "s" represents the "s" sound and the "n" represents the "n" sound. The spelling of "Overson" may be unique, but its pronunciation can be easily understood using the IPA.