The spelling of the name "Vonessa" can be explained with IPA phonetic transcription. The first syllable, "vo", is pronounced as /voʊ/, with the "o" sound as in "boat". The second syllable, "nes", is pronounced as /nɛs/, with the "e" sound as in "bet". The final syllable, "sa", is pronounced as /sɑː/, with the "a" sound as in "father". When combining these sounds, it results in the unique spelling of "Vonessa".