24 entries under double topic. ×

15
double(noun, adjective, part, duplication)
13
duplicate(noun, adjective, part, spare)
12
dual(adjective, part, accompaniment, second)
12
twin(noun, adjective, spare, identical)
10
twofold(adjective, part, spare, equal)
9
binary(adjective, part, accompaniment, second)
8
duple(adjective, part, spare, equal)
7
bilateral(adjective, duplication)
7
second(noun, adjective, duplication, dual)
6
dualistic(adjective, spare, equal, identical)
6
dyadic(adjective, accompaniment)
6
two(noun, adjective, duplication, accompaniment)
4
double-faced(adjective, duplication)
4
paired(adjective, second, twin, dual)
4
two-sided(adjective, duplication)
3
bifold(adjective, duplication, second, twin)
3
bifurcated
3
double-barreled
3
twinned
3
two-faced
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APASmart Define. (2015). duplex thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/duplex/thesaurus/synonyms
ChicagoSmart Define. 2015. "duplex thesaurus" https://smartdefine.org/duplex/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, duplex thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/duplex/thesaurus/synonyms>.
MLASmart Define. "duplex thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/duplex/thesaurus/synonyms>