105 entries under addition topic. ×

3
extra(noun, adjective, increase, attachment)
3
increase(noun, delay, development, spread, extra)
2
accompaniment(noun, decoration, accompaniment, fixture)
2
adornment(noun, decoration, accompaniment, fixture)
2
fixture(noun, decoration, accompaniment)
2
increment(noun, increase, extra, supplement)
1
add-on(noun, increase, extra, attachment)
1
amplification(noun, increase, delay, development, spread)
1
ancillary(noun, adjective, attachment)
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
complement(noun, increase, extra, attachment)
1
continuing(noun, increase, delay, development, spread)
1
delay(noun, increase, development, spread, reach)
1
development(noun, increase, delay, spread)
1
dilatation(noun, increase, delay, development, spread)
1
distension(noun, increase, delay, development, spread)
1
drawing out(noun, expression, increase, delay, development)
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APASmart Define. (2015). appendix thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/appendix/thesaurus/synonyms
ChicagoSmart Define. 2015. "appendix thesaurus" https://smartdefine.org/appendix/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, appendix thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/appendix/thesaurus/synonyms>.
MLASmart Define. "appendix thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/appendix/thesaurus/synonyms>