OPEN-SOURCE

\ˈə͡ʊpənsˈɔːs], \ˈə‍ʊpənsˈɔːs], \ˈəʊ_p_ə_n_s_ˈɔː_s]\
Sort: Oldest first
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
2006 - WordNet 3.0
By Princeton University