The correct spelling of the word "Poiser" is actually "Poisser". The reason for this is because the word comes from the French verb "peser" which means "to weigh". In French, the letter "s" is pronounced like "ss" in English, hence the double "ss" in the English spelling. The phonetic transcription for "Poisser" is /pwa.sɛʁ/ with the stress on the second syllable. It is important to use the correct spelling of words to ensure clear communication and avoid confusion.