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best friend

[ best-frend ]
/ ˈbɛst ˈfrɛnd /
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noun
a person’s closest or most cherished friend: Sheila has been my best friend since we were seven.
something that a person particularly depends on or has a special affection for: A purple, stuffed armadillo was my best friend and companion through my whole childhood.
something considered or suggested to be particularly useful or valuable:When it comes to saving for retirement, compound interest is your new best friend.Your local piano tuner could be your best friend when buying a piano.
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Origin of best friend

First recorded before 1000
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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