What does 一気に mean?
一気に is a Japanese adverb meaning “in one go” in English. It can also be translated as “suddenly” depending on context. It is written as 一気に in kanji, いっきに in hiragana, and ikkini in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
彼は一気に１０時間働いた。
He worked ten hours at a stretch.