Date: 1300-1400
Language: Old French
Origin: Vulgar Latin mina


2 noun
mine2 S2 W3 [countable]
1TI a deep hole or holes in the ground that people dig so that they can remove coal, gold, tin etc
coal/gold/copper etc mine
one of the largest coal mines in the country
in/down a mine
the time when children used to work down the mines
2SCB a type of bomb that is hidden just below the ground or under water and that explodes when it is touched:
They learnt how to lay mines (=put them in place).
The ship struck a mine and sank.

a mine of information (about/on something)

someone or something that can give you a lot of information about a particular subject and that is therefore very useful or helpful:
The website is a mine of information about all forms of cancer.

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