1.
fee revision; rate change; price adjustment
The official adjustment or revision of prices, fees, or rates charged for a service or product. Often used for public utilities, transportation fares, and subscription services.
来月から料金改定がある。
There will be a rate change starting next month.
電気料金の改定について通知が届いた。
I received a notice about the revision of electricity rates.
会社は原材料費の高騰を理由に料金改定を発表した。
The company announced a price revision citing the surge in raw material costs.
Composed of 料金 (fee, charge) and 改定 (revision, amendment). Used when prices or rates are officially changed, whether increased or decreased. Often appears in formal announcements from service providers, utilities, and transportation companies.
COMMON COLLOCATIONS:
- 料金改定の通知: notice of rate revision
- 料金改定を実施する: to implement a fee revision
- 料金改定の理由: reason for the price change
SIMILAR WORDS:
- 値上げ: price increase — specifically means raising prices, while 料金改定 is neutral and can mean either direction
- 価格変更: price change — more general term that can apply to individual products, while 料金改定 implies a systematic, official revision
- 改定 vs 改訂: both read かいてい, but 改定 revises rules/rates while 改訂 revises written texts like books