nubs
nubs
noun
The essential or central points of a discussion, issue, or matter.
"We quickly got to the nubs of the problem."
noun
Small, raised bumps or projections on a surface, often remnants of something.
"The old jumper had tiny nubs of wool."
Thesaurus
Synonyms: stub, marrow, meat, heart, center, heart and soul, inwardness, nitty-gritty, essence, kernel, substance, pith