Noun

• S: (n) kernel, meat (the inner and usually edible part of a seed or grain or nut or fruit stone) "black walnut kernels are difficult to get out of the shell"
• S: (n) kernel (a single whole grain of a cereal) "a kernel of corn"
• S: (n) kernel, substance, core, center, centre, essence, gist, heart, heart and soul, inwardness, marrow, meat, nub, pith, sum, nitty-gritty (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"