In Japanese, Kara Te means Empty Hand. So quite literally, it includes the same moves as any empty-handed martial art.
But colloquially, in the UK, these days, Karate typically refers to that common style of sort-of-martial art, where business men set up sporty clubs in which members dress up in modern sporty versions of traditional Japanese suits, with big & bold club logos, and belts ranging from white to black, and people often counting from 1 to 10 in Japanese while rehearsing moves in thin air, sometimes screaming when they do each move, and often standing in a stance with front leg bent & back leg straight, etc. Not that there's anything wrong in this... But it should be made clear that it is not all strictly necessary as part of a skill-based martial art.
Karate means different things to different people, and for this reason, many of the best teachers will avoid using the name and thus avoid the stigma. But some good teachers still use the word karate, because when people think "martial arts" they naturally think "karate".
If you're thinking of checking out a karate club near Birmingham, you may find this map of local clubs quite useful...
Wikipedia, editable by anyone, is a dodgy source of information. But it's also remarkably useful for things like tracing the origins of Karate. Follow the steps below to see how I traced modern Karate back to its origins in Chinese Kung Fu and maybe elsewhere too.