6
amigo(noun, relation, friend, friendship, mate)
5
hail fellow(noun, expression, close, intimate, relation)
5
pal(noun, relation, companion, friend, friendship)
5
hail fellow well met(expression, adjective, close, best, relation)
4
lifelong friend(noun, expression, close, intimate, relation)
4
special friend(expression, relation, friendship, mate, amity)
4
hail-fellow-well-met(noun, adjective, best, relation, friend)
4
trusted friend(expression, relation, friendship, amity, camaraderie)
4
constant friend(expression, relation, friendship, amity, camaraderie)
4
good friend(expression, relation, friendship, amity, camaraderie)
4
trusty friend(expression, relation, friendship, amity, camaraderie)
3
faithful friend(expression, relation, friendship, amity, camaraderie)
2
staunch friend(expression, relation, friendship, amity, camaraderie)
2
friend(noun, expression, person, affection, relationship)
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APASmart Define. (2015). best friend thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/best_friend/thesaurus/synonyms
ChicagoSmart Define. 2015. "best friend thesaurus" https://smartdefine.org/best_friend/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, best friend thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/best_friend/thesaurus/synonyms>.
MLASmart Define. "best friend thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/best_friend/thesaurus/synonyms>