The spelling of the word "onlookersed" is incorrect as there is no such word in the English language. The correct spelling of the word is "onlookers." The IPA phonetic transcription of this word is /ɒnˈlʊkəz/, which represents the sounds of each letter in the word. The first sound is represented by the /ɒ/ symbol, which is pronounced with a rounded back vowel. The /l/ represents the sound of the letter "L," and the /k/ represents the sound of the letter "K."