core

Meanings

• a small group of indispensable persons or things
  • "five periodicals make up the core of their publishing program"
• the center of an object
  • "the ball has a titanium core"
• the central part of the Earth
• the choicest or most essential or most vital part of some idea or experience
• a cylindrical sample of soil or rock obtained with a hollow drill
• an organization founded by James Leonard Farmer in 1942 to work for racial equality
• the central meaning or theme of a speech or literary work
• (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories
  • "each core has three wires passing through it, providing the means to select and detect the contents of each bit"
• the chamber of a nuclear reactor containing the fissile material where the reaction takes place
• a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil
• remove the core or center from
  • "core an apple"

Synonyms

burden, center, centre, Congress of Racial Equality, core group, effect, essence, gist, heart, heart and soul, inwardness, kernel, magnetic core, marrow, meat, nitty-gritty, nub, nucleus, pith, substance, sum