Synonyms|106Antonyms|1|Broader|0Narrower|0Related|57
1
heart(noun, law, substance, soul, foundation)
1
heart of the matter(noun, expression, idiom, substance, heart)
1
important matter(noun, expression, substance, heart, soul)
1
incarnation
1
kernel(noun, substance, heart, soul, focus)
1
lifeblood
1
major
1
marrow
1
mass
1
meat(noun, substance, heart, soul, focus)
1
meat and potatoes(noun, expression, idiom, substance, heart)
1
name of the game(noun, expression, idiom, substance, heart)
1
nitty-gritty(noun, law, foundation, basic, facts)
1
nuts and bolts(noun, expression, idiom, substance, heart)
1
principal
1
quintessence(noun, substance, heart, soul, focus)
1
reality(noun, substance, heart, soul, focus)
1
rock bottom(expression, law, foundation, basic, stipulation)
1
root(noun, substance, heart, soul, details)
1
sap
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ChicagoSmart Define. 2015. "essential part thesaurus" https://smartdefine.org/essential_part/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, essential part thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/essential_part/thesaurus/synonyms>.
MLASmart Define. "essential part thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/essential_part/thesaurus/synonyms>