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All answers having "Perceived" as clue:

3 Character Answers:

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GOT

KIT

SAW



4 Character Answers:

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FELT

KNEW

SEEN



5 Character Answers:

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KNOWN

NOTED

SPIED

TITHE



6 Character Answers:

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ESPIED

GERBIL

SENSED



7 Character Answers:

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NOTICED

SENSATE



8 Character Answers:

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DECERNED

DETECTED