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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
(late 16th century) From a Romance language, see French concentrer, Italian concentràre, Spanish concentrar; alternatively from Medieval Latin/New Latin concentrō. By surface analysis, con- + centre. Doublet of concentrate.
concenter, focalize, focalise, focus
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Classic usage
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