Definition of concurrent

• a. - Acting in conjunction; agreeing in the same act or opinion; contributing to the same event or effect; cooperating.
• a. - Conjoined; associate; concomitant; existing or happening at the same time.
• a. - Joint and equal in authority; taking cognizance of similar questions; operating on the same objects; as, the concurrent jurisdiction of courts.
• a. - Meeting in one point.
• n. - One who, or that which, concurs; a joint or contributory cause.
• n. - One pursuing the same course, or seeking the same objects; hence, a rival; an opponent.
• n. - One of the supernumerary days of the year over fifty-two complete weeks; -- so called because they concur with the solar cycle, the course of which they follow.