The spelling of the word "vaks" is actually incorrect. It should be spelled as "vax" which means a type of wax material used for various purposes. The correct phonetic transcription of this word would be /væks/. The "a" in the middle is pronounced as the short "a" sound, the "k" at the end is pronounced as the voiceless velar plosive sound. So, the correct spelling and pronunciation of this word is "vax" /væks/.