40 entries under extension topic. ×

6
rise(noun, support, break, advance, increase)
5
development(noun, movement, advance, raise, rise)
4
boost(noun, support, break, movement, advance)
2
gain(noun, verb, advance, raise, rise)
2
hike(noun, support, break, advance, increase)
2
augmentation(noun, advance, increase, raise, rise)
2
burgeoning(noun, raise, gain, rise, growth)
2
upgrade(noun, support, break, advance, increase)
1
access(noun, raise, gain, rise, growth)
1
accession(noun, advance, increase, raise, rise)
1
accretion(noun, advance, increase, raise, rise)
1
accrual(noun, raise, gain, rise, growth)
1
accumulation(noun, raise, gain, rise, growth)
1
addition(noun, advance, increase, raise, rise)
1
aggrandizement(noun, support, break, advance, increase)
1
cumulation(noun, raise, gain, rise, growth)
1
enlargement(noun, advance, increase, raise, rise)
1
escalation(noun, increase, raise, rise, growth)
1
expansion(noun, advance, increase, raise, rise)
1
growth(noun, movement, advance, increase, raise)
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APASmart Define. (2015). breakthrough thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/breakthrough/thesaurus/synonyms
ChicagoSmart Define. 2015. "breakthrough thesaurus" https://smartdefine.org/breakthrough/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, breakthrough thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/breakthrough/thesaurus/synonyms>.
MLASmart Define. "breakthrough thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/breakthrough/thesaurus/synonyms>