85 entries under expression topic. ×
| nuts and bolts(noun, idiom, idea, matter) | |
| point of no return(idiom, trouble, change, twist) | |
| principal element(noun, support, action, base) | |
| rock bottom(cause, source, origin) | |
| sixty-four dollar question | |
| starting point(noun, cause, start, base) | |
| stumbling block(noun, trouble, difficulty, pain) | |
| sum and substance(noun, idiom, heart, essence) | |
| sum total(effect, meaning, essence, import) | |
| whole story(noun, essence, profit, core) | |
| zero hour(pass, occasion, stage, crisis) | |
| beginning bud(noun, heart, center, centre) | |
| bone to pick | |
| brass tacks(effect, meaning, essence, import) | |
| catch stitch | |
| causa causans(idiom, cause) | |
| central part(noun, emotion, soul, mood) | |
| central point | |
| coal and ice(noun, idiom, emotion, heart) | |
| difficult problem |
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| APA | Smart Define. (2015). crux thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/crux/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "crux thesaurus" https://smartdefine.org/crux/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, crux thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/crux/thesaurus/synonyms>. |
| MLA | Smart Define. "crux thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/crux/thesaurus/synonyms> |