PAIN UNIT

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