PERFECTIBILITY
\pəfˌɛktɪbˈɪlɪti], \pəfˌɛktɪbˈɪlɪti], \p_ə_f_ˌɛ_k_t_ɪ_b_ˈɪ_l_ɪ_t_i]\
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By Princeton University
By DataStellar Co., Ltd
By Noah Webster.
By Daniel Lyons