Concurrency 

providing simultaneous access to data by several users in a managed way

Anyone who uses an Airline Reservation system is in fact using a system with concurrency data control

Concurrency by Lita January 11, 2005

concurrency 

A currency whose valuation references the magnitude of transactions occurring simultaneously at any one instant. This magnitude is treated as a function of the distance between the producer and consumer.

Concurrency would make linear time a function of space.

concurrency by sandraxine August 9, 2018

I concurrently concur 

To sarcastically agree to something extremely obvious.
To be a dick.

Dude, Call Of Duty is pretty popular.

I concurrently concur.

I concurrently concur by Z Bobby Boy April 25, 2011