best friend

noun

plural best friends
1
: a person's closest and dearest friend
She's my best friend.
We have been best friends since high school.
2
: a person's most desirable or valuable possession or resource
Diamonds may be a girl's best friend, but gold is more affordable.William Giese
Lycra-cotton leggings and tunic tops are the pregnant woman's best friend, sartorially speaking.Anne Reeks
When cops bang on the door, the toilet is a drug dealer's best friend.Frederick Kaufman

Examples of best friend in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
His pasture mates are two miniature donkeys named Jed and Jethro and his best friend is Gus-Gus, a miniature highland cow. Stephanie Gallman Jordan, Southern Living, 17 Mar. 2025 Pretty soon, all sorts of freaky weirdos were hanging out: Hal’s best friend, Whitney, and Randall’s pretty girlfriend, Jean, and Red, and all their friends, and all their friends, and on and on. Andy Greene, Rolling Stone, 16 Mar. 2025 There comes a time, however, when money talk grows trite even among best friends. Troy Renck, The Denver Post, 16 Mar. 2025 Keelan McAuley plays Josh in the stage version, with Chyna-Rose Frederick taking the role of Cher’s best friend Dionne, Romona Lewis-Malley as Tai, Isaac J Lewis playing Christian and Rabi Konde as Dionne’s boyfriend Murray. Lee Sharrock, Forbes, 15 Mar. 2025 See All Example Sentences for best friend

Word History

First Known Use

13th century, in the meaning defined at sense 1

Time Traveler
The first known use of best friend was in the 13th century

Browse Nearby Words

Cite this Entry

“Best friend.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/best%20friend. Accessed 25 Mar. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!