both
Americanadjective
pronoun
conjunction
determiner
conjunction
Etymology
Origin of both
First recorded in 1125–75; Middle English bothe, bathe, Old English bā thā “both the, both those”; cognate with German, Dutch beide, Old High German bêde; akin to Latin ambō, Greek ámphō, Lithuanian abù, Sanskrit ubháu
Explanation
When you're talking about two things that go together, use the adjective both. If you put on both of your boots, you are wearing the left one and the right one. When you use the word both, you're always talking about two of something. If you say you're having dinner with both of your brothers this weekend, it means you have two brothers. When you call both of your dogs to come inside, it's clear you've got two dogs. There are a few theories about the origin of both, including the Old English word begen, "both," and the the Old Norse baðir, also "both."
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.
Give it a day or two in the fridge, and suddenly you’ve extended the life of both the vegetables and the brine.
From Salon • May 28, 2026
There is also a belief within the club that there is more to come from Gordon both with and without the ball.
From BBC • May 28, 2026
Sales to domestic buyers tell us how much businesses are selling to their customers in the U.S. — both consumers and other companies.
From MarketWatch • May 28, 2026
Indicators of both household and business financial stress have stabilized over the past year, the bank said.
From The Wall Street Journal • May 28, 2026
He gathered both Nollie and me into a bearhug and then ran to the window.
From "The Hiding Place" by Corrie ten Boom
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.