- [noun] a small lump or protuberance
- [noun] a small piece; "a nub of coal"; "a stub of a pencil"
- [noun] the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor's argument"; "the heart and soul of the Republican Party"; "the nub of the story"
Synonyms: kernel, substance, core, center, essence, gist, heart, heart and soul, inwardness, marrow, meat, pith, sum, nitty-gritty
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