Noun substance has 6 senses
  1. substance, matter - that which has mass and occupies space; "an atom is the smallest indivisible unit of matter"
    --1 is a kind of entity
    --1 has particulars:
     food, nutrient; ballast; bedding material, bedding, litter; body substance; protoplasm, living substance; drift; grinding; sediment, deposit; material, stuff; ylem; dark matter; antimatter; micronutrient; philosopher's stone; precursor; phlogiston; allergen; assay; pyrogen, pyrectic; mixture; hydrocolloid; adulterant, adulterator; atom; chemical element, element; propellant, propellent; denaturant; activator; inhibitor; ferment; substrate; carcinogen; compound, chemical compound; element; foamentation; fuel; medium; culture medium, medium; medium; humectant; inoculant, inoculum; jelly; leaven, leavening; fluid; fluid; sludge, slime, goo, gook, guck, gunk, muck, ooze; system; refrigerant; residue; lysin; poison, poisonous substance; chemical irritant; antigen; solid; solute; solvate; volatile; emanation; essence; ligand; metabolite; vegetable matter
  2. substance - the stuff of which an object consists
    --2 is a kind of
    part, portion, component part, component
  3. kernel, substance, core, center, 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"
    --3 is a kind of content, cognitive content, mental object
    --3 has particulars:
     bare bones; hypostasis; quiddity, haecceity; quintessence; stuff
  4. meaning, substance - the idea that is intended; "What is the meaning of this proverb?"
    --4 is a kind of idea, thought
    --4 has particulars:
     significance, import, implication; tenor, strain; undertone, undercurrent; reference, denotation, extension; reference; connotation
  5. means, substance - considerable capital (wealth or income); "he is a man of means"
    --5 is a kind of capital
    --5 has particulars: pocketbook; wherewithal
  6. message, content, subject matter, substance - what a communication that is about something is about
    --6 is a kind of communication
    --6 has particulars:
     body; corker; reminder; request, petition, postulation; memorial; latent content; subject, topic, theme; digression, aside, excursus, divagation, parenthesis; meaning, significance, signification, import; nonsense, bunk, nonsensicality, meaninglessness, hokum; drivel, garbage; acknowledgment, acknowledgement; refusal; information, info; guidance, counsel, counseling, counselling, direction; commitment, dedication; approval, commendation; disapproval; respects; disrespect, discourtesy; interpolation, insertion; statement; statement; wit, humor, humour, witticism, wittiness; opinion, view; direction, instruction; proposal; offer, offering; submission, entry; narrative, narration, story, tale; promotion, publicity, promotional material, packaging; sensationalism; shocker