Worked jointly with others on an activity or project. Past tense of collaborate.
From Latin 'collaboratus', past participle of 'collaborare' (to work together), from 'com-' (together) + 'laborare' (to work). The word gained negative connotations during WWII when referring to cooperation with enemy forces.
The word took on a sinister meaning during World War II when 'collaborators' worked with occupying forces, but has since reclaimed its positive connotations. In modern science and business, collaboration is considered essential for innovation and problem-solving.
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