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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Borrowed from French rafale. In the military context the term may well be obsolete in English; it had been introduced into French military usage by General Hippolyte Langlois in the late nineteenth century, and adopted into English and American usage not long after, but the usage seems to have petered out in English by the end of World War I.
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Classic usage
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