DictionaryAI

main

MAYN/meɪn/

Noun pluralmains

22 meanings of main

Practice

  1. 1
    chiefadjective
    Chief or most important; the largest or principal one among others of its kind.

    The committee's main concern was the project's rising cost.

    Traffic is the main reason commuters leave so early.

    UsageGoes before its noun: the main reason, our main goal. After a verb, say most important instead.

    Similarchief, principal, primary, major, key

    Oppositeminor, secondary

    Note

    An adjective that grew from the old noun for strength: Old English mæġen, used in compounds, meant "strong, main, principal", linking what is chief with what is strong. It does not grade, since no office is more main than another. It usually stands before its noun: the main office, the main thoroughfare, our main interest. Rank, not size, is the point. A main office can be one of the smaller rooms.

    Checked 30 Oct 2026 · 3 facts

    • The adjective main developed from the noun main, whose Old English ancestor meant strength. en.wiktionary.org
    • Old English mæġen meant strength. en.wiktionary.org
    • Old English mæġen had the meanings strong, main and principal when used in compounds. en.wiktionary.org
  2. 2
    utility pipenouncountable
    A large pipe or cable that carries a utility such as water, gas, or electricity to an area or building.

    Engineers shut off the gas main before beginning excavation.

    The city is replacing aging mains that date back a century.

    UsageNamed by what it carries: water main, gas main. Also a burst main.

    Note

    The word is old in the trade. The Report from the Committee on the State of the Pavements records that "a Part of the new Main failed in Dame-street". An 1876 witness speaks of hydrants fixed on new mains, illustrating the phrase on a main.

    Checked 2 Nov 2026 · 1 fact

  3. 3
    chief dishnouncolloquialabbreviationellipsis
    Short for main course: the principal dish of a meal, served after any starter.

    We lingered over starters and ordered our mains much later.

    He chose the lamb for his main and a light salad to start.

    UsageUse the plural mains: two mains. When ordering, say For my main, I'll have the chicken.

  4. 4
    noununcountable
    The chief or principal portion; the bulk or greater part of something.

    In the main, critics praised the novel's ambition.

    The changes to the schedule were, in the main, welcomed by the staff.

    UsageToday mostly in in the main, meaning for the most part.

    Similarbulk

    Note

    Francis Bacon could still use it freely: his Henry VII chose "to rest upon the title of Lancaster as the main", keeping his other claims only as supporters.

    Checked 2 Nov 2026 · 1 fact

    • Francis Bacon's history of Henry VII uses the quoted wording for Henry's reliance on his Lancastrian title, with marriage and conquest as supporting claims. upload.wikimedia.org

More uses

Practice

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Origins

Meanings 1, 6, 8, 11–13, 15

From Middle English mayn, main, from the noun main (see etymology 2). It is comparable to Old English mæġen ("strong, main, principal") and Old Norse megn ("strong, main"), and is cognate with Old High German megīn ("strong, mighty").

Checked 1 Nov 2026 · 4 facts

  • The adjective derives from Middle English mayn, main, from the noun main. en.wiktionary.org
  • Old English mæġen is comparable, with the stated meanings in compounds. en.wiktionary.org
  • Old Norse megn is comparable, with the stated meanings. en.wiktionary.org
  • The word is cognate with Old High German megīn, meaning strong or mighty. en.wiktionary.org
Meanings 2–5, 7, 9–10, 14

Proto-Indo-European *megʰ- ("be able") lies behind Proto-Germanic *maginą ("strength, power, might"), which became Old English mæġen ("strength") and then Middle English mayn or main. Old High German magen, Old Norse magn and Old Saxon megin are cognates. The newer senses come from the adjective.

Checked 1 Nov 2026 · 6 facts

  • Proto-Germanic *maginą derives from Proto-Indo-European *megʰ-, meaning 'be able'. en.wiktionary.org
  • Proto-Germanic *maginą meant strength, power or might. en.wiktionary.org
  • Old English mæġen descended from Proto-Germanic *maginą and meant strength. en.wiktionary.org
  • Old English mæġen became Middle English mayn, also spelled main. en.wiktionary.org
  • Old High German magen, Old Norse magn and Old Saxon megin are cognates. en.wiktionary.org
  • The newer noun senses derive from the adjective. en.wiktionary.org
Meanings 16–19

Nobody can say for sure where this sense comes from, but the adjective main is the likeliest source. A link with French main ("hand") has been suggested without any evidence to back it.

Checked 1 Nov 2026 · 3 facts

Meaning 20

Of uncertain origin, possibly from French main ("hand").

Checked 1 Nov 2026 · 1 fact

  • The origin is uncertain, with French main, meaning ‘hand’, a possible source. en.wiktionary.org