What does 大幅 mean?
大幅 is a Japanese noun meaning “full width, large scale, drastic” in English. It can also be translated as “full-width cloth (approx. 72 cm wide for traditional Japanese clothing; approx. 140 cm wide for Western clothing)” depending on context. It is written as 大幅 in kanji, おおはば in hiragana, and oohaba in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
この政策で物価は大幅に値上がりした。
This policy resulted in a great rise in prices.