concurrent

American  

[kuhn-kur-uhnt, -kuhr-] / kənˈkɜr ənt, -ˈkʌr- /

adjective

1. occurring or existing simultaneously or side by side.

   concurrent attacks by land, sea, and air.

2. acting in conjunction; cooperating.

   the concurrent efforts of several legislators to pass the new law.

3. having equal authority or jurisdiction.

   two concurrent courts of law.

4. accordant or agreeing.

   concurrent testimony by three witnesses.

5. tending to or intersecting at the same point.

   four concurrent lines.

---

noun

1. something joint or contributory.

2. Archaic. a rival or competitor.

concurrent British  

/ kənˈkʌrənt /

adjective

1. taking place at the same time or in the same location

2. cooperating

3. meeting at, approaching, or having a common point

   concurrent lines

4. having equal authority or jurisdiction

5. in accordance or agreement; harmonious

---

noun

1. something joint or contributory; a concurrent circumstance or cause

Other Word Forms

• concurrently adverb
• preconcurrent adjective
• unconcurrent adjective

Etymology

Origin of concurrent

First recorded in 1375–1425; late Middle English, from Middle French or directly from Latin concurrent- (stem of concurrēns, present participle of concurrere “to run together”; concur ); con-, current

Example Sentences

An uncontrolled, sudden increase in voltage in the system "on a day with multiple concurrent phenomena" led to instability and "cascading generation", it said.

From BBC • Mar. 20, 2026

However, it was downhill from there, with the game attracting just 3,600 concurrent PC users on the day Wildlight Entertainment announced the layoffs in February.

From BBC • Mar. 4, 2026

It is said to be the most-streamed sporting event ever, peaking at 65 million concurrent streams with an estimated average minute audience of 108 million live viewers worldwide.

From Los Angeles Times • Feb. 17, 2026

To some, the price action and concurrent jump in trading volume was enough to suggest that the precious metal was trading like a meme stock.

From MarketWatch • Jan. 26, 2026

With a remote control in his hand, he watched all three concurrent news programs every night, raising the volume on any war coverage.

From "Boots on the Ground: America's War in Vietnam" by Elizabeth Partridge