Improvement
Betterment
noun, verbal noun, の adjective
When you renew something and it ends up morally good it's definitely an improvement.
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.
この絵はまだ改善のよ地があると思うんだよね。
I think there's still room for improvement on this painting.
コウイチは、トーフグの体しつ改善を図っています。
Koichi has been trying to improve Tofugu's constitution.
私達のサイトに関して、何か改善すべき点などがございましたら、どうぞご連絡くださいませ。
If you have any suggestions for the improvement of our site, please contact us.