To Concur

1. To unite or agree (in action or opinion); to have a common opinion; to coincide; to correspond.
2. To meet in the same point; to combine or conjoin; to contribute or help towards a common object or effect.
3. (obsolete) To run together; to meet.
4. (rare) To converge.

(to unite or agree): accord, agree, coexist

(to meet in the same point): cooperate, unite

(to run together): assemble, congregate, crowd, flock

(to converge):

(to unite or agree): disagree, dissent

(to meet in the same point):

(to run together): disperse, disassemble

(to converge): diverge