A martial arts instructor. Sensei of martial arts usually live and/or work at a dojo where they instruct their apprentices. A live-in apprentice is also called uchi-deshi.

plural of Korean melon

(figuratively) Trying to achieve a particular task, often with difficulty. / (figuratively) Lost. / (figuratively) Having lost one's mind; insane.

(obsolete) use; fruition; enjoyment