simultaneous

An event that happens at the same time as another event is simultaneous.

The word "simultaneous" is commonly used when we need to describe things happening together, like two clocks striking the same hour or two teams competing in a sports match. You might hear someone say, "The news broke simultaneously around the world," meaning the news was reported at the same time in different places. It's also used in science and technology to describe processes that happen at exactly the same moment, like when a spaceship lands on Mars and its onboard computer starts sending data back to Earth.

In some cases, "simultaneous" can be an adjective (describing something) or a adverb (modifying a verb). As an adjective, it means having to do with events happening together. For example: "The simultaneous translation of the speech was available in several languages." As an adverb, it means happening at the same time. For example: "She spoke simultaneously in three different tongues."