COLORADO RIVER

\kˌɒləɹˈɑːdə͡ʊ ɹˈɪvə], \kˌɒləɹˈɑːdə‍ʊ ɹˈɪvə], \k_ˌɒ_l_ə_ɹ_ˈɑː_d_əʊ ɹ_ˈɪ_v_ə]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd