102 entries under idea topic. ×

5
pith(noun, quality, feeling, character, energy)
5
sentiment(noun, line, view, belief)
5
substance(noun, quality, feeling, character, energy)
5
theory(noun, concept, support, action, philosophy)
5
thesis(noun, system, belief, model)
4
principles(noun, belief, goodness, moral)
4
article of faith(noun, expression, idiom, rule)
4
concept(noun, philosophy, rule, system)
4
design(noun, course, conclusion, aim)
4
hypothesis(noun, concept, action, philosophy, reason)
4
kernel(noun, quality, character, spirit)
4
marrow(noun, quality, feeling, character, energy)
4
plan(noun, model, course, aim)
4
thought(noun, feeling, energy, spirit, mind)
3
argument(noun, system, model, evidence)
3
assertion(noun, evidence, topic)
3
cornerstone(noun, law, foundation, essence)
3
motive(noun, action, cause, reason)
3
point(noun, quality, plan, character, desire)
3
righteousness(noun, honor, goodness, moral)
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APASmart Define. (2015). principle thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/principle/thesaurus/synonyms
ChicagoSmart Define. 2015. "principle thesaurus" https://smartdefine.org/principle/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, principle thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/principle/thesaurus/synonyms>.
MLASmart Define. "principle thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/principle/thesaurus/synonyms>