LOWERCLASSMAN

\lˈə͡ʊəklˌasmən], \lˈə‍ʊəklˌasmən], \l_ˈəʊ_ə_k_l_ˌa_s_m_ə_n]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd