To run together; meet in a point in space.To come together or be accordant, as in character, action, or opinion; agree; coincide: followed by with before the person or thing and in before the object of concurrence.To unite; combine; be associated: as, many causes concurred in bringing about his fall.Eccles., to fall on two consecutive days, as two feasts. See concurrence, 4.To assent: with to.In law, to assert, with other claimants, a claim against the estate of an insolvent.In English law, to unite in two or more persons the title to a single estate.n. In mod. geom., the straight determined by two coplanar flat pencils.