Synonyms|613Antonyms|97|Broader|11Narrower|94Related|340

55 entries under extra topic. ×

2
accoutrement(noun, part, addition, extension)
2
additive(noun, increase, addition, supplement)
2
codicil(noun, increase, addition, supplement)
2
part(noun, end, branch, addition)
2
reinforcement(noun, supplement, add-on)
2
sequel(noun, increase, addition, sequence)
2
subsidiary(noun, increase, addition)
1
add-on(noun, increase, addition, attachment)
1
enlargement(noun, increase, delay, development)
1
expansion(noun, increase, delay, development, spread)
1
fitting(noun, feature, part, addition)
1
insert(noun, increase, addition)
1
option(noun, increase, addition, supplement)
0
accrual(noun, supplement, add-on)
0
added feature(noun, expression, increase, addition)
0
aggrandizement(noun, supplement, add-on)
0
bell(noun, increase, addition)
0
bells and whistles(noun, expression, idiom, increase)
0
bonus(noun, addition, supplement, add-on)
0
boost(noun, supplement, add-on)
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ChicagoSmart Define. 2015. "appendage thesaurus" https://smartdefine.org/appendage/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, appendage thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/appendage/thesaurus/synonyms>.
MLASmart Define. "appendage thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/appendage/thesaurus/synonyms>