Meaning of “mine” in the English Dictionary

"mine" in British English

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minepronoun

uk /maɪn/ us /maɪn/

A2 the one(s) belonging to or connected with me:

"Whose bag is this?" "It's mine."
Your son is the same age as mine.
She's an old friend of mine.
Mine is the silver car, the convertible.

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minenoun [ C ]

uk /maɪn/ us /maɪn/

mine noun [ C ] (HOLE)

B2 a hole or system of holes in the ground where substances such as coal, metal, and salt are removed:

a coal/salt/gold mine
a mine shaft
My grandfather used to work in (UK also down) the mines.

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mineverb

uk /maɪn/ us /maɪn/

minedeterminer

uk /maɪn/ us /maɪn/ old use

(Definition of “mine” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"mine" in American English

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minepronoun

us /mɑɪn/

mine pronoun (BELONGING TO ME)

belonging to me, or that which belongs to me:

"Whose bag is this?" "It’s mine."
Your hair is longer than mine.
She’s a friend of mine.

minenoun [ C ]

us /mɑɪn/

mine noun [ C ] (HOLE)

a deep hole in the ground made for the removal of coal and other substances by digging:

a gold mine

A mine is also where something can be found:

Belinda is a mine of information about home decorating.

mine noun [ C ] (BOMB)

a bomb put underground or in the sea that explodes when vehicles, ships, or people go over or near it

A mine detector is a device used to discover whether there are mines in a particular area.

mineverb

us /mɑɪn/

mine verb (DIG IN HOLE)

[ I/T ] to remove coal or other substances from a deep hole in the ground:

[ T ] They mine copper in this area.

mine verb (BOMB)

[ T ] to hide mines in an area:

The desert has been heavily mined.

(Definition of “mine” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"mine" in Business English

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minenoun [ C ]

uk /maɪn/ us NATURAL RESOURCES, PRODUCTION

a place in the ground where substances such as coal, metal, and salt are removed, or the area and buildings around this place:

in/down the mine 2,000 people work down the mine.
a coal/salt/gold mine
a mine shaft

mineverb [ I or T ]

uk /maɪn/ us NATURAL RESOURCES, PRODUCTION

to dig coal or another substance out of the ground:

mine for sth They're mining for salt.
They mine a lot of copper around these parts.

(Definition of “mine” from the Cambridge Business English Dictionary © Cambridge University Press)