means A kata is a prearranged sequence of martial-arts movements, practiced solo and repeatedly, to drill technique into muscle memory.

from From Japanese 型 (or 形) meaning "form," "shape," or "pattern" — the same idea of a mold or template that gives something its proper shape. The word entered English through the spread of Japanese martial arts like karate and judo in the 20th century, carrying with it the notion that a fixed form, endlessly repeated, eventually becomes second nature.