383 entries under noun topic. ×

3
bottom line(expression, part, spirit, idea)
3
center(support, action, body, cause)
3
closed book(expression, trouble, challenge, question)
3
cornerstone
3
decisive point(expression, part, heart, root)
3
difficulty(trouble, burden, challenge, question)
3
emergency(trouble, change, pass, difficulty)
3
exigency(trouble, change, pass, difficulty)
3
fundamental(support, action, cause, start)
3
hinge(support, cause, join, point)
3
joint(join, point, link, junction)
3
keystone(support, action, idea, base)
3
pass(trouble, change, point, twist)
3
pinch(trouble, change, pass, twist)
3
question(difficulty, challenge, idea, matter)
3
quiddity(quality, character, spirit, significance)
3
root(support, action, quality, cause)
3
significance(quality, body, character, strength)
3
soul(force, quality, cause, start)
3
strait(trouble, change, pass, difficulty)
11 years ago|9.6k views|share |citing 
APASmart Define. (2015). crux thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/crux/thesaurus/synonyms
ChicagoSmart Define. 2015. "crux thesaurus" https://smartdefine.org/crux/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, crux thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/crux/thesaurus/synonyms>.
MLASmart Define. "crux thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/crux/thesaurus/synonyms>