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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Irregular formation from Ancient Greek εὑρίσκω (heurískō, “I find, discover”) (compare the proper Greek term εὑρετικός (heuretikós)).
heuristic rule, heuristic program
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tap / space
Classic usage
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