Translation guide
How to express the idea of upgrading something in Japanese, from software and hardware to services and personal skills.
To update or improve a software, app, operating system, or digital service to a newer or better version.
The most direct and common loanword for 'upgrade', used widely for software, systems, and services.
OSをアップグレードした。
I upgraded the OS.
プランをアップグレードする。
I'll upgrade my plan.
Means 'update' or 'renew', often used for software updates, but can imply an upgrade when moving to a newer version.
アプリを最新版に更新した。
I updated the app to the latest version.
Literally 'version up', a common wasei-eigo term for upgrading software to a new version.
ソフトをバージョンアップした。
I upgraded the software.
To replace or improve physical items like a computer, phone, car, or appliance with a better model.
Means 'to replace by buying a new one', the most natural way to say you upgraded a physical item.
スマホを買い替えた。
I upgraded my smartphone.
車を新しいのに買い替えるつもりだ。
I plan to upgrade to a new car.
Also used for hardware, especially in tech contexts, but '買い替える' is more natural for consumer goods.
PCをアップグレードした。
I upgraded my PC.
Wasei-eigo for 'grade up', meaning to improve the grade or quality, used for cars, equipment, etc.
車をグレードアップした。
I upgraded my car.
To move to a higher tier of service, such as a flight seat, hotel room, or subscription plan.
Standard term for service upgrades, like flight or hotel upgrades.
ビジネスクラスにアップグレードしてもらった。
I got upgraded to business class.
Means 'rank up', used for membership tiers or loyalty programs.
会員ランクがアップした。
My membership rank was upgraded.
Literally 'raise the grade', used for upgrading service levels or plans.
ホテルの部屋のグレードを上げた。
I upgraded the hotel room.
To improve one's skills, knowledge, or qualifications, often through learning or practice.
Wasei-eigo for 'skill up', the most common way to say 'upgrade skills'.
プログラミングのスキルをアップしたい。
I want to upgrade my programming skills.
Means 'to improve' or 'enhance', more formal and used for abilities or quality.
語学力を向上させる。
I'll upgrade my language skills.
Means 'level up', often used for skills or abilities in a casual or gaming-inspired way.
英語力をレベルアップしたい。
I want to level up my English.
To make something better in quality, performance, or value, not limited to a specific domain.
Means 'to improve' or 'make better', a general term applicable to processes, systems, or conditions.
業務プロセスを改善した。
We upgraded our business processes.
Means 'to strengthen' or 'reinforce', used when upgrading security, performance, or capabilities.
セキュリティを強化した。
We upgraded security.
General 'grade up', but less common than specific terms.
生活の質をグレードアップする。
Upgrade the quality of life.
Directly translating 'upgrade' as 'アップグレード' is not always natural. For physical items, use '買い替える' (replace by buying). For skills, use 'スキルアップ' or '向上させる'.
スマホをアップグレードした。
I upgraded my smartphone. (unnatural)
スマホを買い替えた。
I upgraded my smartphone. (natural)