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Pronunciation of 

simultaneous

view main entry for simultaneousadjective  /ˌsaɪm(ə)lˈteɪniəs/
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American English pronunciation: simultaneousClick to listen to the pronunciation of simultaneous

derived words

simultaneity

  /ˌsaɪm(ə)ltəˈneɪəti/  noun [uncountable]
American English pronunciation: simultaneityClick to listen to the pronunciation of simultaneity

simultaneously

   adverb
American English pronunciation: simultaneouslyClick to listen to the pronunciation of simultaneously
simultaneously American English pronunciation: simultaneouslyClick to listen to the pronunciation of simultaneous  adverba movie that opened simultaneously in the U.S. and in EuropeHappening or done at the same time: when, while, simultaneous, together, meanwhile, concurrent, as, even as, at the same time, all the time

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