EQUAIIZATION OR SATION

\ˈiːkwəɹ ˌɪa͡ɪzˈe͡ɪʃən ɔː sˈe͡ɪʃən], \ˈiːkwəɹ ˌɪa‍ɪzˈe‍ɪʃən ɔː sˈe‍ɪʃən], \ˈiː_k_w_ə_ɹ ˌɪ__aɪ_z_ˈeɪ_ʃ_ə_n__ ɔː s_ˈeɪ_ʃ_ə_n]\
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1919 - The Concise Standard Dictionary of the English Language
By James Champlin Fernald