71 entries under extension topic. ×

8
development(noun, advance, increase, delay, progress)
7
producing(noun, increase, line, design, result)
6
prolongation(noun, increase, delay, development, line)
6
protraction(noun, increase, delay, development, line)
4
lengthening(noun, increase, delay, development, spread)
3
elongation(noun, increase, delay, development, spread)
2
increase(noun, advance, delay, progress, development)
2
propagation(noun, spread, persistence, continuation)
2
stretch(noun, increase, energy, delay, development)
2
stretching(noun, advance, increase, delay, rise)
1
addendum(noun, increase, delay, development, spread)
1
addition(noun, increase, delay, development, spread)
1
adjunct(noun, increase, delay, development, spread)
1
amplification(noun, increase, delay, development, spread)
1
annex(noun, increase, delay, development, spread)
1
appendage(noun, increase, delay, development, spread)
1
appendix(noun, increase, delay, development, spread)
1
arm(noun, increase, delay, development, spread)
1
augmentation(noun, advance, increase, gain, delay)
1
branch(noun, increase, delay, development, spread)
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APASmart Define. (2016). production thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/production/thesaurus/synonyms
ChicagoSmart Define. 2016. "production thesaurus" https://smartdefine.org/production/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, production thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/production/thesaurus/synonyms>.
MLASmart Define. "production thesaurus" 2 March 2016. Web. 25 September 2026. <https://smartdefine.org/production/thesaurus/synonyms>