1.
flat rate; fixed amount; set price
A predetermined, unchanging price or fee regardless of usage amount, commonly used for service plans and subscriptions.
定額制だから使い放題だ。
It's a flat rate, so you can use it as much as you want.
定額プランに変更した。
I switched to a flat-rate plan.
動画サービスは定額で見放題のものが多い。
Many video streaming services offer unlimited viewing for a flat fee.
Compound of 定 (fixed) + 額 (amount). Refers to a set, unchanging price or quantity, widely used in subscription and service plan contexts.
COMMON COLLOCATIONS:
- 定額制: flat-rate system
- 定額プラン: flat-rate plan
- 定額サービス: flat-rate service
- 定額給付金: fixed-amount benefit/stipend
CONTRASTS:
- 従量制: pay-per-use, metered (opposite pricing model)
- 変動: variable, fluctuating
RELATED TERMS:
- 月額: monthly fee
- 年額: annual fee
- 使い放題: unlimited use (often paired with 定額)
With the rise of subscription services (streaming, software, etc.), 定額制 and サブスク (subscription) have become everyday terms in Japan.