9
masterpiece(noun, performance, good, work, triumph)
5
work(noun, large, book, novel, profession)
4
chef-d'oeuvre(noun, good)
3
masterwork(noun, good, work, masterpiece)
3
opus(noun, music, work, large, book)
3
production
3
tour de force(noun, work, achievement)
2
creation(noun, work, invention, handiwork, concoction)
2
achievement(noun, performance, prize, success, triumph)
2
classic(noun, model)
2
jewel(noun, work)
2
master-work
2
piece de resistance(noun, expression, idiom, performance, work)
2
title
2
tome(noun, large, book)
1
best seller
1
cairn(stone, remembrance, shrine, memorial, testimonial)
1
career(profession, major, hobby)
1
cenotaph(stone, remembrance, shrine, memorial, testimonial)
1
claim to fame(expression, idiom, profession, major, hobby)
<123457>
11 years ago|2.1k views|share |citing 
APASmart Define. (2015). magnum opus thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/magnum_opus/thesaurus/synonyms
ChicagoSmart Define. 2015. "magnum opus thesaurus" https://smartdefine.org/magnum_opus/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, magnum opus thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/magnum_opus/thesaurus/synonyms>.
MLASmart Define. "magnum opus thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/magnum_opus/thesaurus/synonyms>