Refinement
Polish
noun, verbal noun
You take your practice and you wash it. Slowly chunks fall off and it becomes more and more simple. You are washing away the gunk on the outside to attain refinement and polish yourself, via practice.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
シンプルで洗練されたデザインのトートバッグです。
It's a tote bag with a simple and sophisticated design.
彼女の言葉づかいはとても洗練されています。
Her use of language is very sophisticated.
うーん…悪くはないけど、もう少し洗練した方がいいかな？
Hmmm... not bad, but maybe a little more refinement would be good?