kaizen

noun

1. (countable, uncountable)A Japanese business practice of continuous improvement in performance and productivity.
2. (broadly, countable, uncountable)Continuous improvement generally.

   “This is a big mistake, because Japanese railways were largely built using British equipment and technology. But what they have done since is ruthlessly improve and refine it, using Kaizen principles.”

verb

1. (transitive)To apply continuous improvement to (a task, or the worker who performs it).