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Definitions

best friend

[best frend] / ˈbɛst ˈfrɛnd /
NOUN
bosom friend
Synonyms
WEAK
bosom buddy close friend companion confidant dear friend pal soul mate
NOUN
fast friend
Synonyms
WEAK
constant friend devoted friend fidus Achates good friend great friend staunch friend trusted friend trusty friend

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"He's my best friend, my inspiration," said Sonny.

From BBC • Apr. 23, 2026

A mainstay throughout Walsh's career has been best friend and team-mate Williamson, who played alongside her in England's youth teams.

From BBC • Apr. 13, 2026

Her best friend, Max, who was unofficially adopted by Suzanna’s parents and is shellacked in cynicism as played by the excellent Alden Ehrenreich, exhorts her to pull herself together and face her “big girl problems.”

From The Wall Street Journal • Apr. 7, 2026

“Instagram can be your best friend as a Realtor,” she adds.

From MarketWatch • Apr. 3, 2026

I’ve never said this out loud to Autumn before; it was just understood that she was my best friend and that she’d be there for me no matter what.

From "Kwame Crashes the Underworld" by Craig Kofi Farmer