core

the most important or main part of something

used to emphasize the absolute center or most fundamental part

the most committed or dedicated group of people within a larger group

the fundamental and necessary part of something

a set of shared standards or principles, often in education

the centermost part of something

the layer surrounding the innermost part, often liquid (e.g., Earth's outer core)

a core that is not hollow or liquid

a core that is physically robust or a central part that is powerful

a core with tightly packed matter

the central or most important emotional aspect of something (e.g., a story, a song)

the very centermost part, emphasizing its depth

the central part of a nuclear reactor

describes a core that is empty inside

a core made of copper, often in cables

a core made of iron, often in electromagnets

the central, innermost part of the planet Earth

completely or in every aspect (e.g., shaken to the core)

at the most fundamental level of something

to reach or understand the most important part of a problem or matter

to constitute or be the main part of something

to constitute or be the main part of something

to be all around the central part