Plural of collaboration; instances of working together with others to produce or create something.
From Latin 'collaborare' (com- 'together' + laborare 'to work'), through French 'collaboration'. Gained negative connotations during WWII when referring to working with enemy forces.
Collaboration underwent a dramatic meaning shift during WWII, when it became associated with treason and working with occupying forces. Today it's largely reclaimed its positive meaning, but this historical baggage shows how world events can permanently alter word connotations.
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