57 entries under swelling topic. ×

37
extension(noun, act, time, area, advance)
36
increase(noun, advance, increase, delay, rise)
32
enlargement(noun, act, advance, increase, raise)
25
spread(noun, verb, act, time, place)
12
inflation(noun, increase, raise, rise, benefit)
11
dilation(noun, increase, development, growth, opening)
8
distension(noun, increase, delay, rise, development)
8
rise(noun, advance, increase, raise, progress)
6
boost(noun, advance, increase, raise, rise)
6
distention(noun, opening, enlargement, inflammation)
5
aggrandizement(noun, advance, increase, raise, rise)
5
enhancement(noun, increase, rise, development, spread)
4
buildup(noun, advance, increase, rise, progress)
4
engorgement(noun, enlargement, inflammation, redundancy)
3
boom(noun, increase, rise, benefit, interest)
3
hike(noun, advance, increase, raise, rise)
3
prosperity(noun, good, advance, increase, ease)
2
blowing up(noun, expression, increase, rise, enlargement)
2
edema(enlargement, inflammation)
2
escalation(noun, advance, increase, raise, rise)
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APASmart Define. (2016). expansion thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/expansion/thesaurus/synonyms
ChicagoSmart Define. 2016. "expansion thesaurus" https://smartdefine.org/expansion/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, expansion thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/expansion/thesaurus/synonyms>.
MLASmart Define. "expansion thesaurus" 1 April 2016. Web. 26 September 2026. <https://smartdefine.org/expansion/thesaurus/synonyms>