The spelling of the word "powerd" is incorrect, as the correct spelling is "powered". The IPA phonetic transcription of this word is /paʊərd/, which indicates that the word is pronounced with two syllables: "pow" and "erd". The "ow" sound is pronounced as in the word "cow" and the "er" sound is pronounced as in the word "herd". The letter "d" at the end of the word indicates that it is in the past tense or passive voice.