karate

This term refers specifically to the disciplined practice of a Japanese martial art. It is typically used to describe both the physical activity and the broader philosophical system of training. In a social context, it is often associated with the concept of a dojo (training hall) and the pursuit of various belt ranks.

Grammatically, the word is treated as an uncountable noun because it refers to a system of combat or a field of study rather than a discrete object. One does not refer to "three karates," but rather to "karate practice" or "a style of karate."