Translation guide
To make a process, system, or shape more efficient by removing unnecessary steps or reducing resistance.
プロセスを合理化する
streamline a process
The speaker wants to express improving efficiency by simplifying or removing unnecessary parts.
The most direct and common translation for streamlining operations, processes, or systems in business or organizational contexts.
業務プロセスを合理化する必要がある。
We need to streamline our business processes.
Focuses on making something more efficient, often used interchangeably with 合理化 but with a nuance of improving output relative to input.
作業を効率化して時間を節約しよう。
Let's streamline the work and save time.
Emphasizes simplification, often by reducing complexity or paperwork. Suitable for procedures or rules.
申請手続きを簡素化しました。
We streamlined the application procedure.
A loanword-based expression meaning to slim down or make lean, often used for organizations or budgets.
会社の組織をスリム化する計画だ。
There's a plan to streamline the company's organization.
Literally 'eliminate waste', this phrase captures the idea of streamlining by cutting out unnecessary elements. More colloquial.
会議の無駄を省いて、もっと生産的にしよう。
Let's streamline our meetings and be more productive.
The speaker is talking about making a vehicle, object, or body shape more aerodynamic or hydrodynamic.
The standard technical term for giving something a streamlined shape to reduce drag.
新幹線の先頭部分は流線形になっている。
The nose of the Shinkansen is streamlined.
Focuses on the purpose: reducing air resistance. Often used when explaining design changes.
車のデザインを変えて空気抵抗を減らした。
We streamlined the car's design to reduce air resistance.
The English loanword used in design or engineering contexts, but less common than native phrases.
この車はストリームラインのデザインを採用している。
This car adopts a streamlined design.
合理化 (rationalization) often implies eliminating redundancies or unnecessary steps, while 効率化 (efficiency improvement) focuses on doing the same thing with less time or resources. In many business contexts they overlap, but 合理化 can carry a nuance of downsizing or cutting costs.
人員削減を伴う合理化
streamlining that involves workforce reduction
The English word 'streamline' is often used metaphorically. Direct translations like 流線化する are not natural in Japanese for business processes. Use 合理化 or 効率化 instead.