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 executioner, my best friend, my greatest champion — I’m talking about my mother, of course.

From Los Angeles Times • May 12, 2026

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

From Los Angeles Times • May 7, 2026

"My mother-in-law and best friend died from heart complications," he said.

From BBC • May 3, 2026

He said she was his "best friend" and was the "heart and soul" of their family.

From BBC • Apr. 24, 2026

I’ve found someone who knows how to be a best friend.

From "Code Name Kingfisher" by Liz Kessler