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.

Bird enthusiast and Sevidov's best friend, Vyacheslav Kaistro, did enlist.

From Barron's • May 20, 2026

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

From The Wall Street Journal • May 19, 2026

But I didn’t find a French marriage — I found my best friend.

From Los Angeles Times • May 11, 2026

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

From Los Angeles Times • May 7, 2026

“OK. Jack Peterson? He’s Mom’s best friend, right?”

From "South of Somewhere" by Kalena Miller