RATIONALISE

\ɹˈaʃənəlˌa͡ɪz], \ɹˈaʃənəlˌa‍ɪz], \ɹ_ˈa_ʃ_ə_n_ə_l_ˌaɪ_z]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
1874 - Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.