The spelling of the word "SIGNIFICAVTT" may seem unusual, but it is a deliberate misspelling often used to evade spam filters. The word "SIGNIFICAVTT" is an alternative spelling of the word "significant", with the letters "VTT" replacing "NT". This is because some spam filters flag emails that contain the word "significant" due to its frequent use in phishing attacks. The IPA phonetic transcription of "SIGNIFICAVTT" would be /sɪɡˈnɪfɪkævt/.