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
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The drama stars June Squibb as a 90-year-old woman from Florida who moves to New York City after the death of her best friend and strikes up an unlikely friendship with a 19-year-old. Elsa Keslassy, Variety, 10 Apr. 2025 The iRobot Roomba i3+ EVO will be a best friend for anyone working from home. Yelena Moroz Alpert, Architectural Digest, 9 Apr. 2025 When he was dropped from the 2002 European Super Cup, his best friend, Raul, wore Morientes’ shirt under his own as a gesture of solidarity. Nick Miller, New York Times, 8 Apr. 2025 Vince Vaughn Says Wedding Crashers 2 Is 'Always a Possibility': Has to Tell 'a Great Story' Manganiello, 48, who plays Joe’s best friend, Bruno, tells PEOPLE that learning from his real-life counterpart, combined with his long-time friendship with Vaughn, made the role that much easier. Lizzie Hyman, People.com, 8 Apr. 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

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Cite this Entry

“Best friend.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/best%20friend. Accessed 19 Apr. 2025.

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