5
duplicate(adjective, part, double, duplication)
5
twofold(adjective, part, double, duplication)
4
binary(adjective, part, double)
4
double(adjective, part, duplication)
4
dual(adjective, part, double)
4
duplex(adjective, part, duplication)
4
geminate(adjective, part, double)
4
twin(adjective, double, duplication)
3
bilateral
2
second
2
two-sided
1
ambidextrous
1
bicameral
1
bicephalous
1
bicipital
1
bicuspid
1
bidental
1
bifacial
1
bifold
1
bilabiate
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APASmart Define. (2015). biform thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/biform/thesaurus/synonyms
ChicagoSmart Define. 2015. "biform thesaurus" https://smartdefine.org/biform/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, biform thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/biform/thesaurus/synonyms>.
MLASmart Define. "biform thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/biform/thesaurus/synonyms>