14 entries under similarity topic. ×

8
twin(noun, family, kin, kinship)
6
mate(noun, associate, companion, friend)
1
counterpart
1
analogue
1
match
0
alter ego(noun, expression, idiom, friend)
0
pendant
0
double
0
like
0
pair
0
fellow companion(expression, idiom)
0
one's second self(expression, idiom)
0
par nobile fratrum(expression, idiom)
-1
brother(noun, person, associate, family, companion)
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APASmart Define. (2016). sister thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/sister/thesaurus/synonyms
ChicagoSmart Define. 2016. "sister thesaurus" https://smartdefine.org/sister/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, sister thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/sister/thesaurus/synonyms>.
MLASmart Define. "sister thesaurus" 30 March 2016. Web. 30 September 2026. <https://smartdefine.org/sister/thesaurus/synonyms>