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Pronunciation of 

reactive

view main entry for reactiveadjective  /riˈæktɪv/
American English pronunciation: reactiveClick to listen to the pronunciation of reactive

derived word

reactivity

  /ˌriækˈtɪvəti/  noun [uncountable]
American English pronunciation: reactivityClick to listen to the pronunciation of reactivity
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pre-roll

a video advertisement that appears immediately before an online video

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Open Dictionary

breakfast rave

a rave … that takes place early in the morning and where there is no alcohol or drugs …

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