| significant(adjective, momentous, milestone, landmark) | |
| solve(verb, discover) | |
| sophisticated | |
| spread(noun, raise, gain, rise, development) | |
| step-up(noun, advance, increase, raise, gain) | |
| step forward(noun, expression, movement, advance, progress) | |
| strike | |
| support(noun, break, advance, increase, raise) | |
| surge(noun, advance, increase, raise, rise) | |
| swell(noun, advance, increase, raise, gain) | |
| uncovering | |
| unearth(verb, discover) | |
| unmask(verb, discover) | |
| unmasking(noun, discovery) | |
| unprovoked assault | |
| unravel(verb, discover) | |
| unraveling(noun, discovery) | |
| unriddle(verb, discover) | |
| upsurge(noun, advance, increase, raise, rise) | |
| upturn(noun, advance, increase, raise, gain) |
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| APA | Smart Define. (2015). breakthrough thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/breakthrough/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "breakthrough thesaurus" https://smartdefine.org/breakthrough/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, breakthrough thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/breakthrough/thesaurus/synonyms>. |
| MLA | Smart Define. "breakthrough thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/breakthrough/thesaurus/synonyms> |