Dictionary.com
Thesaurus.com
Synonyms

both

American  
[bohth] / boʊθ /

adjective

  1. one and the other; two together.

    He met both sisters. Both performances were canceled.


pronoun

  1. the one as well as the other.

    Both of us were going to the party.

conjunction

  1. alike; equally.

    He is both ready and willing.

both British  
/ bəʊθ /

determiner

    1. the two; two considered together

      both dogs were dirty

    2. ( as pronoun )

      both are to blame

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

conjunction

  1. (coordinating) used preceding words, phrases, or clauses joined by and , used to emphasize that not just one, but also the other of the joined elements is included

    both Ellen and Keith enjoyed the play

    both new and exciting

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
both Idioms  

    More idioms and phrases containing both


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

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.

“He walked out, and we both went back to work. Sometimes, you just have to put on your big-girl pants and stand up for yourself, even if it feels incredibly uncomfortable and scary.”

From Los Angeles Times

The pair, both 23, have been drafted in as part of wholesale changes to a team that has lost two of its first three games in the Six Nations.

From BBC

The hospital said the decisions of medical staff were based on concerns for the health of both mother and foetus.

From Barron's

Brent crude and natural gas both spiked more than 6% on Tuesday.

From Barron's

Morgan Stanley pegs U.S. private-credit lending alone at around $3 trillion, larger than both the public high-yield bond market and the syndicated loan market.

From MarketWatch