Translation guide
The English word "primer" has several distinct meanings. This guide covers the most common ones: an introductory textbook, an undercoat of paint, and a device for igniting an explosive. Each meaning has different Japanese equivalents.
A book that provides basic instruction on a subject, often for beginners.
Literally 'introduction book'. The most common and natural translation for a primer as a beginner's guide.
プログラミングの入門書を買った。
I bought a primer on programming.
この入門書はとてもわかりやすい。
This primer is very easy to understand.
A guidebook or handbook. Slightly more formal, often used for practical guides.
初心者向けの手引き書を探しています。
I'm looking for a primer for beginners.
Literally 'elementary text'. Used especially for language learning or skill-based subjects.
英語の初級テキストを使っています。
I'm using an English primer.
Refers to the introductory volume or part of a series. Often used in titles.
このシリーズの入門編を読んでください。
Please read the primer of this series.
A preparatory coating applied to a surface before painting to improve adhesion and durability.
The loanword 'puraimā' is widely used in DIY and construction contexts.
塗装の前にプライマーを塗ってください。
Apply a primer before painting.
Literally 'undercoat agent'. A more descriptive term, common in technical contexts.
この下塗り剤は金属に適しています。
This primer is suitable for metal.
Specifically a sealer-type primer used to seal porous surfaces. Not a general primer.
A small explosive device used to set off a larger explosive charge, such as in firearms or blasting.
The standard term for a blasting cap or detonator primer.
雷管をセットしてから起爆します。
Set the primer before detonating.
General term for gunpowder or explosive charge, sometimes used for the primer charge in older firearms.
Technical term for the initiating explosive material itself.
入門書 (primer) is an introductory guide, often for self-study. 教科書 (textbook) is a standard book used in formal education. A primer is usually simpler and more basic.
In hardware stores or DIY contexts, プライマー is universally understood. 下塗り剤 is more technical and may not be recognized by all clerks.
I apply a sealer primer to the wall before painting.
Old guns used a primer charge of gunpowder.
起爆薬は衝撃に敏感です。
The primer explosive is sensitive to shock.