Pronunciation: [ˌaɡɹɪɡˈe͡ɪʃənd] (IPA)
Correct spelling for the English word "aggregationed" is [ˌaɡɹɪɡˈe͡ɪʃənd], [ˌaɡɹɪɡˈeɪʃənd], [ˌa_ɡ_ɹ_ɪ_ɡ_ˈeɪ_ʃ_ə_n_d] (IPA phonetic alphabet).