14 entries under similarity topic. ×

11
mate(noun, love, associate, companion)
10
sister(noun, person, associate, family, companion)
7
twin(noun, sibling)
4
alter ego(noun, expression, idiom, friend)
3
counterpart
3
analogue
3
like
2
pendant
1
match
0
double
0
fellow companion(expression, idiom)
0
one's second self(expression, idiom)
0
pair
0
par nobile fratrum(expression, idiom)
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APASmart Define. (2015). brother thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/brother/thesaurus/synonyms
ChicagoSmart Define. 2015. "brother thesaurus" https://smartdefine.org/brother/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, brother thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/brother/thesaurus/synonyms>.
MLASmart Define. "brother thesaurus" 9 September 2015. Web. 30 September 2026. <https://smartdefine.org/brother/thesaurus/synonyms>