DictionaryAI

mine

MYN/maɪ̯n/

Verbmines, mining, mined

Noun pluralmines

18 meanings of mine

Practice

  1. 1
    belonging to mepronoun
    The one or ones belonging to me; also used after of ("a friend of mine").

    Those muddy boots on the porch are mine, not Dad's.

    She forgot her umbrella, so I lent her mine for the walk home.

    UsageNo noun follows it: my coat, but the coat is mine. The verb agrees with what it replaces: mine are here.

  2. 2
    verbtransitive or intransitive
    To dig into the earth to find and take out coal, ore, or other minerals.

    Workers mine coal from seams far below the valley floor.

    The firm mines lithium for use in electric-car batteries.

    UsageSay mine a material or mine for it: mine coal, mine for gold.

    Similarextract, dig, excavate

  3. 3
    pitnouncountable
    An excavation, often a system of underground tunnels, from which ore or solid minerals are extracted.

    The copper mine employed most of the town's residents.

    Rescue teams reached the trapped workers deep inside the mine.

    UsageOften in compounds: coal mine, gold mine, mine shaft.

    Similarpit

    Note

    This noun is a different word from the possessive, despite the spelling. A mine may run underground through shafts or lie open to the sky, as open-pit mines do. Its parts include the mine shaft (or mineshaft) and the mine car.

    Checked 2 Nov 2026 · 3 facts

  4. 4
    hidden bombnouncountable
    A device designed to explode when stepped on, touched, or approached by a ship, vehicle, or person.

    Engineers carefully cleared each mine from the road before the convoy passed.

    A floating mine struck the ship's hull near the bow.

    UsageCommon phrases: step on a mine, lay mines, clear mines; the area is a minefield.

    Note

    Military usage sorts these devices by where they wait. On land, a foot or a wheel sets them off; at sea, floating mines threaten ships. An area sown with them is a minefield. In May 1940 the Railway Magazine listed floating mines with pack ice, snow and fog among the hazards that suspended most of Denmark's train ferries.

    Checked 3 Nov 2026 · 5 facts

    • Military usage distinguishes mines employed on land from those employed at sea. govinfo.gov
    • Land mines can be triggered by a person's foot or a vehicle's wheel. govinfo.gov
    • Floating mines threaten ships. govinfo.gov
    • An area containing laid mines is a minefield. en.wiktionary.org
    • The May 1940 Railway Magazine report about Denmark listed pack ice, snow, fog and floating mines as causes of railway disruption and reported that most train ferry services were suspended. en.wiktionary.org
  5. 5
    tap intoverbfigurativelytransitive
    To draw extensively on a source for what it can yield; to tap into.

    Historians mine old letters for clues about everyday life.

    The startup mines customer feedback to improve its app.

    UsageMine a source for something: mine old letters for clues.

    Similartap, exploit, comb, scour, trawl

  6. 6
    earn cryptoverbtransitive or intransitive
    To earn new units of a cryptocurrency by performing the required computational calculations.

    Enthusiasts mine various coins using racks of specialized hardware.

    She mines a lesser-known cryptocurrency on a rig with several graphics cards.

    Note

    Finance and computing share this verb, which treats new coins as ore dug from the ground. The calculations are the digging, and the reward is newly issued units. Andrew Ross Sorkin's "Bitcoin's Climate Problem" in The New York Times (2021) shows the debate the word now carries, over the carbon footprint of the computers that mine bitcoins.

    Checked 31 Oct 2026 · 4 facts

    • Cryptocurrency mining uses an analogy with extracting valuable material from the ground. bitcoin.org
    • Mining involves computational calculations rewarded with newly issued cryptocurrency. bitcoin.org
    • Andrew Ross Sorkin's 'Bitcoin's Climate Problem' appeared in The New York Times in 2021; the cited publication date is March 9. en.wiktionary.org
    • The article discusses debate over Bitcoin mining's carbon footprint. en.wiktionary.org

Practice

Can you tell the meanings of mine apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origins

Meanings 1, 8, 13

From Middle English min, from Old English mīn, going back through Proto-Germanic *mīnaz to Proto-Indo-European *méynos. It is related to Dutch mijn, German mein, and Danish, Swedish and Norwegian min.

Checked 1 Nov 2026 · 2 facts

  • Mine derives from Middle English min and Old English mīn, through Proto-Germanic *mīnaz to Proto-Indo-European *méynos. en.wiktionary.org
  • Mine is related to Dutch mijn, German mein, and Danish, Swedish and Norwegian min. en.wiktionary.org
Meanings 2–7, 9–12, 14–16

The word goes back to Proto-Celtic *meinis ("ore, metal"), which gave a Gaulish word (compare Welsh mwyn and Irish mianach, "ore"). Late Latin took this as mina, Old French had mine, and from there it passed into Middle English.

Checked 1 Nov 2026 · 5 facts

  • The ultimate source is reconstructed Proto-Celtic *meinis, meaning ‘ore, metal’. en.wiktionary.org
  • The borrowing chain includes a Gaulish descendant of Proto-Celtic *meinis. en.wiktionary.org
  • Welsh mwyn is a related word meaning ‘ore’. en.wiktionary.org
  • Irish mianach is a related word meaning ‘ore’. en.wiktionary.org
  • Gaulish supplied Late Latin mina, which became Old French mine and was borrowed into Middle English. en.wiktionary.org