I. kənˈkər.ənt, (ˈ)kän|k-, -kə.rə- adjective
Etymology: Middle English concurrant, from Middle French & Latin; Middle French concurrent, from Latin concurrent-, concurrens, present participle of concurrere
1.
a. : converging, meeting, intersecting, running together at a point
in both heads the brow ridges are absent, and the eyebrows concurrent — C.S.Coon
specifically mathematics : meeting in a point
b. : running parallel
concurrent lines of force
2. : occurring, arising, or operating at the same time often in relationship, conjunction, association, or cooperation
the power of taxation in the general and state governments is acknowledged to be concurrent — John Marshall
the Germans launched a well-prepared full-scale invasion of southern Norway with the concurrent occupation of Trondheim and Narvik — Times Literary Supplement
3.
a. : acting in conjunction : marked by accord, agreement, harmony, or similarity in effect or tendency
the concurrent testimony of all visitors to the spot
b. of insurance policies : insuring the same property to the same extent or under identical clauses
4. law : joint and equal in authority : taking cognizance of or having authority over the same subject matters : operating on the same objects
concurrent jurisdiction of courts
also : operating simultaneously
sentenced to serve three concurrent life terms
Synonyms: see contemporary
II. noun
( -s )
1. : one that concurs : a joint or contributory cause
to all affairs of importance there are three necessary concurrents … time, industry, and faculties — Henry More
2. archaic : rival , opponent