

This book is mine.
Used to refer to something that belongs to the speaker.
That toy is mine.
The red car is mine.
This jacket is mine.
mine alone
mine to keep
mine and yours
my own
belonging to me
of mine
The coal mine is very deep.
A place where minerals or other materials are extracted from the ground.
The gold mine was discovered last year.
They worked in the salt mine for many years.
The copper mine produces a lot of metal.
coal mine
gold mine
iron mine
pit
quarry
excavation