87 entries under extension topic. ×

3
fixture(noun, part, extra, addition)
3
spread(noun, verb, take, cover, advance)
3
stretch(noun, verb, take, cover, increase)
2
development(noun, increase, delay, spread, addition)
2
expansion(noun, increase, delay, development, spread)
1
amplification(noun, increase, delay, development, spread)
1
arm(noun, increase, delay, development, spread)
1
branch(noun, increase, delay, development, spread)
1
broadening(noun, increase, delay, development, spread)
1
compass(noun, increase, delay, development, spread)
1
continuing(noun, increase, delay, development, line)
1
delay(noun, increase, development, spread, reach)
1
dilatation(noun, increase, delay, development, spread)
1
distension(noun, increase, delay, development, spread)
1
drawing out(noun, expression, increase, delay, development)
1
ell(noun, addition, addendum)
1
elongation(noun, increase, delay, development, spread)
1
extent(noun, increase, delay, development, spread)
1
lengthening(noun, increase, delay, development, spread)
1
orbit(noun, increase, delay, development, spread)
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APASmart Define. (2015). supplement thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/supplement/thesaurus/synonyms
ChicagoSmart Define. 2015. "supplement thesaurus" https://smartdefine.org/supplement/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, supplement thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/supplement/thesaurus/synonyms>.
MLASmart Define. "supplement thesaurus" 22 December 2015. Web. 24 September 2026. <https://smartdefine.org/supplement/thesaurus/synonyms>