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Webster 1913 Edition

Noun.

[L.

concertatio

Strife; contention.

[Obs.]

Bailey.

Noun.

Strife; contention. [Little used.]

concertation ‎(plural concertations)

A form of dialogue and co-decision, implying the mutual exchange of information, open discussion and knowledge sharing, and the signature of operational agreements between public administrations and/or with representatives of the private sector.
(obsolete) Strife, contention.

strife, contention

form of dialogue and co-decision

concertation in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913 (obs.)

concertation f ‎(plural concertations)