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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English haha, ha ha, from Old English ha ha (interjection), ultimately onomatopoeic. Compare Old Frisian haha (interjection), Middle Low German hahā, hahahā (interjection), Middle High German hahā, haha (interjection), all expressions of joy or of laughter.
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Classic usage
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