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.

My best friend, Lucyann, lived across the street, and was a year younger.

From The Wall Street Journal • May 19, 2026

A married couple lived next to their best friend for years.

From Los Angeles Times • May 7, 2026

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

From The Wall Street Journal • May 3, 2026

"He's my best friend, so what would a best friend do?" says Chamley-Watson.

From BBC • Apr. 23, 2026

“And this is Ingrid Ant, my best friend since we were three.”

From "Bye Forever, I Guess" by Jodi Meadows