SPEAKER UNIT

\spˈiːkə jˈuːnɪt], \spˈiːkə jˈuːnɪt], \s_p_ˈiː_k_ə j_ˈuː_n_ɪ_t]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd