Indicating a large scale or substantial amount/degree (used as 大幅な/大幅に to mean drastic or considerable).
来月から家賃が大幅に値上げされる予定だ。
Rent is scheduled to rise substantially starting next month.
業績の悪化で社員の削減が大幅に行われた。
Due to poor performance, staff reductions were carried out on a large scale.
仕様が大幅に変更されたため、開発が遅れている。
Because the specifications were changed significantly, development is delayed.
A term for the width of cloth; traditionally about 72 cm for kimono fabric and around 140 cm for Western fabrics (textile term).
着物を仕立てるために大幅の布を買った。
I bought wide fabric (ōhaba) to make a kimono.