to master (to acquire complete knowledge or skill (in something))

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

technique, art, skill

skill / technique

(judo) yuko, points or the judge call to the points in judo match. Fewer points to ippon.

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

game master

(video game development) completion of development

(video game development) to complete development