ECOSOC

\ˈiːkə͡ʊsˌɒk], \ˈiːkə‍ʊsˌɒk], \ˈiː_k_əʊ_s_ˌɒ_k]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd