BIANNUALLY

\ba͡ɪˈanjuːə͡li], \ba‍ɪˈanjuːə‍li], \b_aɪ__ˈa_n_j_uː_əl_i]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd