Gaslighting

Misleading someone into doubting reality

Gaslighting is a colloquialism, defined as manipulating someone into questioning their own perception of reality. The expression, which derives from the title of the 1944 film Gaslight, became popular in the mid-2010s. Merriam-Webster cites deception of one's memory, perception of reality, or mental stability. According to a 2022 Washington Post report, it had become a "trendy buzzword" frequently improperly used to describe ordinary disagreements, rather than those situations that align with the word's historical definition.

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