The central meaning or theme of a speech or literary work
Else clues• An organization founded by James Leonard Farmer in 1942 to work for racial equality
• A bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil
• A cylindrical sample of soil or rock obtained with a hollow drill
• The choicest or most essential or most vital part of some idea or experience
• The central part of the earth
• A small group of indispensable persons or things
• The center of an object
• The chamber of a nuclear reactor containing the fissile material where the reaction takes place