Pronunciation: (kun-kûr'),[key] —v.i.,-curred, -cur•ring. 1. to accord in opinion; agree: Do you concur with his statement? 2. to cooperate; work together; combine; be associated: Members of both parties concurred. 3. to coincide; occur at the same time: His graduation concurred with his birthday. 4. Obs.to run or come together; converge.