Plural of caret; multiple small V-shaped symbols used for editing or corrections.
From 'caret' (Latin for 'it lacks'), with regular English plural '-s'. See 'caret' for full etymology.
In the age of word processors, carets seem quaint, but they're still used in programming (the ^ symbol means 'to the power of' or 'XOR'), showing how a 2,000-year-old proofreading symbol evolved into computer science notation.
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