1. works together with others on a project or activity
Usage: third person singular present tense of collaborate
2. assists an enemy occupying one’s country
Usage: often considered treasonous

Examples

• She collaborates with scientists from different universities on climate research.
• The artist collaborates with musicians to create multimedia performances.
• Our team collaborates effectively to meet project deadlines.
• The company collaborates with local suppliers to reduce costs.
• He collaborates with his colleagues on the annual report.
• The historian was accused of collaborating with the occupying forces during the war.