1. working together with others on a project or activity
Usage: present participle of collaborate
2. cooperating with an enemy, especially during wartime occupation
Usage: often considered treasonous

Examples

• The scientists are collaborating on a new research project.
• We’ve been collaborating with the marketing team for months.
• The artists are collaborating to create a mural for the school.
• Students were collaborating effectively in their group work.
• The two companies are collaborating on developing new technology.
• He was accused of collaborating with the occupying forces.
• The musicians enjoyed collaborating on the album.