n. The act of running or coming together; meeting; conjunction; combination of causes, circumstances, events, etc.; coincidence; union.n. Joint approval or action; accordance in opinion or operation; acquiescence; contributory aid or influence.n. A meeting or equivalency, as of claims or power: a term implying a point of equality between different persons or bodies: as, a concurrence of jurisdiction in two different courts.n. Eccles., immediate succession of two feasts or holy days, so that the second vespers of the first and the first vespers of the second coincide in time, and cannot both be observed.n. In mathematics, the meeting of lines, surfaces, etc.n. In mod. geom., the meeting-point or cointersection-point of three or more lines.n. In French law, equality of rights of several parties in the same subject-matter or thing.