160TH

\wˈɒnhˈʌndɹədən sˈɪksti͡əθ], \wˈɒnhˈʌndɹədən sˈɪksti‍əθ], \w_ˈɒ_n_h_ˈʌ_n_d_ɹ_ə_d_ə_n s_ˈɪ_k_s_t_iə_θ]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd