What does 一変 mean?
一変 is a Japanese noun meaning “complete change” in English. It is written as 一変 in kanji, いっぺん in hiragana, and ippen in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
夫妻は化学を近代科学へと一変させた。
The couple transformed chemistry into a modern science.