84 entries under extension topic. ×

3
lengthening(noun, increase, delay, development, spread)
3
radius(noun, time, area, increase, delay)
3
surge(noun, advance, increase, raise, rise)
3
upsurge(noun, increase, raise, rise, growth)
2
access(noun, raise, rise, growth, addition)
2
addendum(noun, increase, delay, development, spread)
2
adjunct(noun, increase, delay, development, spread)
2
escalation(noun, advance, increase, raise, rise)
2
orbit(noun, time, area, increase, delay)
2
prolongation(noun, increase, group, delay, development)
2
protraction(noun, increase, delay, development, spread)
2
purview(noun, time, area, increase, delay)
2
raise(noun, advance, increase, rise, growth)
2
span(noun, time, area, increase, delay)
2
supplement(noun, increase, delay, development, spread)
2
upping(noun, advance, increase, rise, progress)
2
upturn(noun, increase, raise, rise, growth)
2
waxing(noun, advance, raise, rise, progress)
1
annex(noun, increase, delay, development, spread)
1
appendage(noun, increase, delay, development, spread)
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APASmart Define. (2016). expansion thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/expansion/thesaurus/synonyms
ChicagoSmart Define. 2016. "expansion thesaurus" https://smartdefine.org/expansion/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, expansion thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/expansion/thesaurus/synonyms>.
MLASmart Define. "expansion thesaurus" 1 April 2016. Web. 28 September 2026. <https://smartdefine.org/expansion/thesaurus/synonyms>