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"confirmed" is also used as a crossword clue. If that's what you saw, the answer is often affirmed (8 letters).
Definitions
of persons; not subject to change
Used in a sentence
“a confirmed liar”
“a confirmed opium-smoker”
“a confirmed treaty”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“verified”9 letters
02“Verified or made definite”9 letters
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