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team up (with someone)
to join with someone. I teamed up with Jane to write the report. I had never teamed up with anyone else before. I had always worked alone.
1. To form or join a team or an association: We decided to team up and combine our resources. The police are teaming up with schools to prevent violence.
2. To combine someone into a team or an association: The coach teamed me up with two of the worst athletes in the school. My boss teamed up the best workers for the project.