NUMBER THEORIST

\nˈʌmbə θˈi͡əɹɪst], \nˈʌmbə θˈi‍əɹɪst], \n_ˈʌ_m_b_ə θ_ˈiə_ɹ_ɪ_s_t]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd