Meaning and Usage
The word "核" (かく) primarily means "nucleus" or "core." It is used in scientific contexts to refer to the nucleus of an atom or cell, as well as in broader contexts to indicate the central or most important part of something.
Common Contexts
- Scientific: Refers to the atomic nucleus or cell nucleus.
- Military: Often appears in compounds like "核兵器" (nuclear weapons).
- Figurative: Used to describe the core or essential part of an organization or group.
Collocations and Patterns
- 核兵器 (かくへいき): nuclear weapons, used in political and military discussions.
- 核心 (かくしん): core, essence, often used figuratively.
- 核となる: to become the core or central figure, common in business or social contexts.
Register and Nuance
"核" is a formal and technical term, often used in written language or formal speech. When used figuratively, it emphasizes importance or centrality.
Common Learner Mistake
Learners sometimes confuse "核" with "核心" (core) or other similar-sounding words. Remember that "核" alone can mean nucleus or core, but in everyday conversation, it often appears in compounds or figurative expressions.