Meaning and Usage
"大部分" means "most part" or "majority" and is used to indicate that a large portion of something is being referred to. It is a common expression in both spoken and written Japanese.
Common Contexts
You will often see "大部分" used when talking about quantities, time, people, or parts of a whole. For example, "大部分の学生" means "most students," and "大部分の時間" means "most of the time."
Collocations and Patterns
- 大部分の + noun: to specify the majority of a group or thing (e.g., 大部分の人, 大部分の仕事)
- 大部分は + verb phrase: to indicate that most of something does an action (e.g., 大部分は終わった)
Register and Nuance
"大部分" is neutral and can be used in formal and informal contexts. It is more precise than vague terms like "たくさん" (many) because it emphasizes the majority portion.
Common Mistakes
Learners sometimes confuse "大部分" with "ほとんど," which also means "almost all" or "most." "ほとんど" often implies "nearly all" and can be used with negatives (e.g., ほとんどない), while "大部分" focuses on the majority portion and is usually used positively.