Translation guide
The central or most important part of something, or the hard inner part of a fruit. This guide covers natural Japanese expressions for these meanings.
Referring to the essential, central, or most fundamental part of something abstract or concrete.
The core, heart, or essence of a matter, issue, or argument. Often used in formal or analytical contexts.
問題の核心に迫る。
Get to the core of the problem.
彼の主張の核心はそこにある。
That is the core of his argument.
Center, core, heart. Used for both physical centers and the most important part of something. Very common and versatile.
この計画の中心は環境保護です。
The core of this plan is environmental protection.
彼はチームの中心選手だ。
He is the core player of the team.
Core, nucleus, kernel. Often used for the central part of an organization, system, or group. Slightly formal.
彼らは会社の中核を担っている。
They form the core of the company.
Essence, true nature, core. Emphasizes the fundamental quality of something, often abstract.
問題の本質を見極める。
Discern the core of the issue.
Quintessence, true spirit, core. Used for the deepest essence, often in cultural or artistic contexts. Somewhat literary.
茶道の真髄を学ぶ。
Learn the core of the tea ceremony.
The tough central part of an apple, pear, etc., containing seeds.
The core of a fruit, like an apple core. Also used for pencil lead, wick, etc.
りんごの芯を取る。
Remove the apple core.
梨の芯は食べられない。
You can't eat the core of a pear.
Referring to the body's core muscles or physical center of gravity.
The trunk or core of the body; often used in fitness and sports contexts.
体幹を鍛えるトレーニング。
Training to strengthen your core.
Loanword from English, commonly used in fitness for 'core muscles'.
コアトレーニングで腹筋を鍛える。
Strengthen your abs with core training.
Technical term for the central part of a reactor or a processor core.
Reactor core (nuclear).
原子炉の炉心が損傷した。
The reactor core was damaged.
Used for processor cores in computing.
このCPUは8コアです。
This CPU has 8 cores.
核心 (kakushin) is the core of an issue or argument, often abstract. 中心 (chūshin) is the physical or metaphorical center, very common. 中核 (chūkaku) is the core of an organization or system, slightly formal.
議論の核心に触れる。
Touch the core of the discussion.
街の中心にある公園。
A park at the core of the city.
中核メンバーとして活躍する。
Play an active role as a core member.