The meaning of MINE is my —used before a word beginning with a vowel or h or sometimes as a modifier of a preceding noun—archaic except in an elevated style. How to use mine in a sentence.
Naval mine, or sea mine, a mine at sea, either floating or on the sea bed, often dropped via parachute from aircraft, or otherwise lain by surface ships or submarines
In land mine warfare, an explosive or material, normally encased, designed to destroy or damage ground vehicles, boats, or aircraft, or designed to wound, kill, or otherwise incapacitate personnel.
Mine is the first person singular possessive pronoun. A speaker or writer uses mine to refer to something that belongs or relates to himself or herself. Her right hand is inches from mine. That wasn't his fault, it was mine.