Translation guide
The most important or central part of something.
The most important or central part of something, such as a story, argument, or physical object.
Neutral term for the main part of something, often used in formal or written contexts.
この論文の主要部分は第3章です。
The main part of this paper is Chapter 3.
Refers to the main body or main unit of something, often physical objects or devices.
The central part or core, often used for physical locations or abstract centers.
Used in grammar to mean the main clause or subject part, or in technical contexts.
この文の主部は「彼は」です。
The main part of this sentence is 'he'.
The larger or greater part of a group, amount, or time.
この機械の本体はとても重いです。
The main part of this machine is very heavy.
街の中心部には大きな公園があります。
In the main part of town, there is a large park.
Most common way to say 'the greater part' or 'most of'. Used for both concrete and abstract quantities.
仕事の大部分はもう終わりました。
The main part of the work is already finished.
参加者の大部分は学生でした。
The main part of the participants were students.
Similar to 大部分, but often implies more than half, sometimes used in more formal contexts.
時間の大半を会議に費やした。
We spent the main part of the time in meetings.