HISTORY LESSON

\hˈɪstəɹˌi lˈɛsən], \hˈɪstəɹˌi lˈɛsən], \h_ˈɪ_s_t_ə_ɹ_ˌi l_ˈɛ_s_ə_n]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd