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 Elizabeth Smith has what appears to be the perfect life, but after her best friend’s death, her obsession with his murder begins to unravel her. Lynnette Nicholas, Essence, 25 Apr. 2024 Her best friend at the time taught Kat how to fix her own computer and inspired her habit of tinkering with the machines. Kathy Gilsinan, WIRED, 24 Apr. 2024 Strangely, virtually the same thing was happening at the same time to my best friend, J. Harry Jones, who soldiered beside me long ago as a reporter for The Star. Charles Hammer, Kansas City Star, 24 Apr. 2024 The fashion designer and mom of four invited a who's-who of the celebrity world, including her best friends and former girl band: the Spice Girls. Hedy Phillips, Peoplemag, 23 Apr. 2024 The first season examined the unsolved 1982 disappearance of Durst's first wife, Kathleen McCormack; the killing of his best friend, Susan Berman, who was shot in her Los Angeles home in 2000; and the death in 2001 of his Texas neighbor Morris Black, found dismembered in Galveston Bay. Erin Jensen, USA TODAY, 22 Apr. 2024 Rogers had his dad, stepmom and Carlos, one of his best friends, there. Hannah Kirby, Journal Sentinel, 13 Apr. 2024 While in town visiting his girlfriend and his best friend, Patrick gets into a fight with both of them and doesn’t show up to Tashi’s big match. Amanda Luberto, The Arizona Republic, 12 Apr. 2024 When Penelope gives herself a makeover with the intention of winning a husband, Colin finally notices how beautiful his best friend is — and promptly agrees to help her in her quest by teaching her how to catch a handsome gentleman. Maureen Lee Lenker, EW.com, 11 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'best friend.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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

Dictionary Entries Near best friend

Cite this Entry

“Best friend.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/best%20friend. Accessed 1 May. 2024.

Last Updated: - Updated example sentences
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