DOUBLE CHECK

\dˈʌbə͡l t͡ʃˈɛk], \dˈʌbə‍l t‍ʃˈɛk], \d_ˈʌ_b_əl tʃ_ˈɛ_k]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd