The definition of concurrency in the English language is an agreement or some form of cooperation. It is originally from the early 16th century and comes from the Latin word "concurrens," meaning "to run together."
In computer terminology, a concurrency is when two or more operations are performed simultaneously within a computer. These processes typically are independent of one another.
In the field of anesthesiology, concurrency is when the anesthesiologist is applying two or more procedures to a single individual. Depending on the surgery, an individual might need several procedures to ensure they are unconscious.
Concurrency in roads is when a highway or freeway changes its name or number despite the physical road not changing. This frequently occurs when a road passes into a new city, county or state.
In geometry, concurrency is the point at which three or more lines intersect. Lines that intersect at a point of concurrency are known as "concurrent lines."