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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.

It would be like a best friend who’s always there for you and endlessly helpful.

From The Wall Street Journal • May 3, 2026

Early the following year, Raynella remarried David Leath, a local barber who, according to the News-Sentinel, was Ed Dossett’s best friend.

From The Wall Street Journal • May 1, 2026

Also on his table was seven-time Formula One world champion Lewis Hamilton, who has since become Chamley-Watson's "best friend".

From BBC • Apr. 23, 2026

Aryan Simhadri, who portrays Percy’s best friend Grover Underwood in the series, spoke out last year about an unsettling encounter with a handsy fan when a group of “40 drunk college girls” recognized him.

From Los Angeles Times • Apr. 13, 2026

Camille lucks out with a close parking spot and lets the car idle while we gaze at the townhouse belonging to Mom’s best friend.

From "South of Somewhere" by Kalena Miller