Longman Dictionary of Contemporary English homepage

Date: 1700-1800
Origin: concert 'to do together or by agreement' (16-21 centuries), from French concerter, from Old Italian concertare, from Latin, 'to fight, compete', from com- ( COM-) + certare 'to make great efforts'



concerted effort/action/attack etc

a concerted effort etc is done by people working together in a carefully planned and very determined way:
Libraries have made a concerted effort to attract young people.
concertedly adverb

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