The spelling of the word "VPPPH" can be explained using the International Phonetic Alphabet (IPA). The first letter "V" represents the voiced labiodental fricative sound /v/, which is produced by placing the lower lip against the upper teeth and exhaling with vocal cord vibration. The following three letters "PPP" represent three successive voiceless bilabial plosive sounds /p/, produced by forcefully stopping the airflow with both lips and then releasing it. The final letter "H" represents the voiceless glottal fricative sound /h/, produced by exhaling air through a tight opening at the back of the vocal cords.