EXTINGUISHABLE
\ɛkstˈɪŋɡwɪʃəbə͡l], \ɛkstˈɪŋɡwɪʃəbəl], \ɛ_k_s_t_ˈɪ_ŋ_ɡ_w_ɪ_ʃ_ə_b_əl]\
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By Princeton University
By DataStellar Co., Ltd
By Oddity Software
By Noah Webster.