English Reference
determiner · pronoun · conjunction

both

det. · pron. · conj.
US /ˈboʊθ/ UK /bˈəʊθ/ both

  1. 01 A1 Beginner

    det.used to refer to two people or things together.

    det.used before a plural noun or 'of' to refer to two entities previously mentioned or easily identified.

    Simple

    Both sisters have the same green eyes as their mother.

    In context

    Both candidates presented compelling arguments during the debate, making it difficult for the committee to reach a final decision.

    Usage

    Can be used directly before a noun or followed by 'of' plus a determiner.

    Pitfall
    Both of students were late. Both of the students were late.

    When using 'both of', you must include a determiner like 'the', 'these', or 'my' before the noun.

    the two
  2. 02 A1 Beginner

    pron.used on its own to mean 'the two people' or 'the two things'.

    pron.functions as a substitute for a noun phrase referring to two people or things.

    Simple

    I have two brothers and both are taller than me.

    In context

    The museum offered two distinct tours of the estate, and we decided to attend both to get a full history of the grounds.

    Usage

    Takes a plural verb form.

    the pair
  3. 03 A1 Beginner

    conj.used with 'and' to emphasize that two different things are true.

    conj.a correlative conjunction used to emphasize the link between two coordinated entities or qualities.

    Simple

    The hotel was both cheap and very clean.

    In context

    The new policy is designed to be both economically sustainable and environmentally responsible over the long term.

    Usage

    Always paired with 'and' to connect two words or phrases of the same grammatical type.

    Pitfall
    The movie was both long but also boring. The movie was both long and boring.

    The word 'both' must be paired with 'and', not 'but also' or 'as well as'.

    not only... but also
    neither... nor

From Middle English bothe, boþe, from Old English bā þā (“both the; both those”) and possibly reinforced by Old Norse báðir, from Proto-Germanic *bai. Cognate with Saterland Frisian bee (“both”), West Frisian beide (“both”), Dutch beide (“both”), German beide (“both”), Swedish både, båda, Danish både, Norwegian både, Icelandic báðir. Replaced Middle English bō, from Old English bā, a form of Old English bēġen. A remnant of the Indo-European dual grammatical number.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin gem-pro *bai
Level A1 · Beginner
Frequency Very common
Updated