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British pronunciation of 

extraterrestrial

view main entry for extraterrestrial adjective  /ˌekstrətəˈrestriəl/
British English pronunciation: extraterrestrial
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BuzzWord

gaslight

to manipulate someone psychologically so that they begin to question their own perceptions and memories

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Open Dictionary

Dunning-Kruger effect

the phenomenon by which an incompetent person is too incompetent to understand his own incompetence

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