matching

Etymology

verb

1. present participle and gerund of match

adj

1. The same as another; sharing the same design.
   We bought a new sofa and matching armchairs.
   … the Class 142s and 143s have at times sported a number of advertising liveries …. The two cars of Arriva Trains Wales 142081 were certainly not a matching pair when photographed in 2005. May 20 2020, John Crosse, “Soon to be gone... but never forgotten”, in Rail, page 61, photo caption

noun

1. The process by which things are matched together or paired up.
2. (graph theory) A set of independent edges in a given graph, i.e. a set of edges which do not intersect, such that pairs of vertices are "matched" to each other one to one.