What does 完成 mean?
完成 is a Japanese noun meaning “complete, completion; perfection” in English. It is written as 完成 in kanji, かんせい in hiragana, and kansei in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
新しい鉄道はまだ完成していない。
The new railway is not completed yet.