substance vs theme

Other hyponyms of substance include body, corker, reminder, petition, postulation, request, memorial, latent content, subject, topic, aside, digression, divagation, excursus, parenthesis, import, meaning, significance, signification, bunk, hokum, meaninglessness, nonsense, nonsensicality, drivel, garbage, acknowledgement, acknowledgment, refusal, info, information, counsel, counseling, counselling, direction, guidance, commitment, dedication, approval, commendation, disapproval, respects, discourtesy, disrespect, insertion, interpolation, statement, statement, humor, humour, wit, witticism, wittiness, opinion, view, direction, instruction, proposal, offer, offering, entry, submission, narration, narrative, story, tale, packaging, promo, promotion, promotional material, publicity, sensationalism, shocker.