Meanings
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1
verb
to revise or reinterpret a fictional work's storyline, often to maintain continuity or update it
The series finale retconned several character backstories.
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2
verb
to introduce new backstory into an established fictional work
Later issues retconned a hidden sibling into the hero's past.
Thesaurus
Etymology
A blend of retro- (Latin 'backward') and continuity, coined in Modern English to name the revision of previously established facts in a fictional work.