the tough central part of various fruits, containing the seeds

quarter the pears, remove the cores then slice again into wedges

an apple core

the part of something that is central to its existence or character

the plan has the interests of children at its core

the dense central region of a planet, especially the nickel–iron inner part of the earth

central to the existence or character of someone or something

managers can concentrate on their core activities

painting is core to his being and has brought purpose, meaning, and discipline to his life

conference business is core to our success

denoting or relating to a figure for inflation that excludes certain items, chiefly food and energy, that are subject to sudden and temporary price fluctuations

core inflation was up 2.3 percent over the 12 month period

remove the tough central part and seeds from (a fruit)

peel and core the pears

(in the US) Congress of Racial Equality