expression, ichidan verb
Used for improving a skill, technique, or quality through effort. Often implies adding a final touch or bringing something to a higher level.
彼は毎日練習して、ピアノの腕に磨きをかけている。
He practices every day to polish his piano skills.
プレゼンの内容に磨きをかけてから本番に臨んだ。
I refined the presentation content before the actual event.
expression, ichidan verb
polish by rubbing
Literal physical polishing, such as shining a surface or object by rubbing. Less common than the figurative sense.
職人が刀に磨きをかけて、刃を輝かせた。
The craftsman polished the sword, making the blade shine.