What does 累積 mean?
累積 is a Japanese noun meaning “accumulation” in English. It can also be translated as “cumulative” depending on context. It is written as 累積 in kanji, るいせき in hiragana, and ruiseki in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
アメリカ人が貿易赤字を累積したのは、限度を超えたぜいたくをしたからですよ。
Americans accumulated their trade deficits by living far beyond their means.