noun
1.
Synonyms: center 1, middle, midpoint, midst
2.
Synonyms: body 3, bulk, corpus, mass, staple, substance
3.
Synonyms: substance 2, amount, body, burden, gist, meat, pith, purport, thrust, upshot
Related Word: consequence, import, importance, significance
4.
Synonyms: center 3, heart, pith, quick, root
Related Word: base, basis, foundation; beginning, commencement, origin, start