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Synonyms

best friend

American  
[best frend] / ˈbɛst ˈfrɛnd /

noun

  • best friends
    plural
  1. a person’s closest or most cherished friend.

    Sheila has been my best friend since we were seven.

    Synonyms:
    bosom friend, bosom buddy, bff, bf, bestie
  2. something that a person particularly depends on or has a special affection for.

    A purple, stuffed armadillo was my best friend and companion through my whole childhood.

  3. something considered or suggested to be particularly useful or valuable.

    When it comes to saving for retirement, compound interest is your new best friend.

    Your local piano tuner could be your best friend when buying a piano.


Other Word Forms

Noun Inflected Forms


Etymology

Origin of best friend

First recorded before 1000


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.

See Examples For:

For Wurster, Schwab’s chief executive, this was no hypothetical; he recently met an older woman who described OpenAI’s ChatGPT as her best friend.

From The Wall Street Journal ● Oct. 18, 2026

Notably, his "best friend in football", Cole Palmer, joined Chelsea for £42.5m having not needed a loan move to establish himself at Manchester City.

From BBC ● Oct. 5, 2026

She’s my best friend, and I’m the happiest I have ever been when I’m with her, but I have also never felt so supported and safe, ever.

From MarketWatch ● Sep. 23, 2026

He doesn’t carry a U.S. passport, but he believes America is the best friend the Chinese people have.

From The Wall Street Journal ● Sep. 21, 2026

The spirits suggested she take his help and “not be prejudiced against her best friend, Mr. Livermore.”

From "American Spirits" by Barb Rosenstock

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