Synonyms of core in English:

core

noun

  • 1 they plan to harness the heat from the earth's core
    centre, interior, middle, nucleus, bosom;
    informal innards
    literary midst
  • 2 this new paper goes to the core of the argument
    essence, quintessence, crux, gist, pith, substance, sum and substance, body, basis;
    fundamentals, essentials, basic principles, main ingredients;
    heart of the matter
    informal nitty-gritty, brass tacks, nuts and bolts, ABC, basics
  • adjective

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  • the core issue here is that of urban poverty
    [Antonyms] peripheral, minor
  • Definition of core in:

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    Word of the day demoralize
    Pronunciation: dɪˈmɒrəlʌɪz
    verb
    cause (someone) to lose confidence or hope