Completion, Accomplishment
noun, verbal noun
When something has become perfect it has reached completion.
かんせい
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.
完成前に起こしてもらえますか？
Can you get me up before it's completed?
さあ、もうすぐ完成ですよ。
Alright, it's almost finished now.
新しい日本語学習アプリが完成するのが楽しみです。
I'm looking forward to the completion of the new Japanese learning app.