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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From flat + top. Sense of “aircraft carrier” attributed to the message, “Scratch one flattop,” radioed during the Battle of the Coral Sea by LCDR Robert E. Dixon to the USS Lexington, whose commanding officer credited the pilot with coining the standard USN slang.
crew cut
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Classic usage
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