Definition of "Minor" :
noun: a young person of either sex
verb: have as one's secondary field of study
"In collee she minored in mathematics."
adjective: relatively moderate, limited, or small
adjective: inferior in number or size or amount
"A minor share of the profits."
adjective: lesser in scope or effect
"Had minor differences."
adjective: not of legal age
"Minor children."
adjective: (of a scale or mode) having half steps between the second and third degrees, and (usually) the fifth and sixth degrees, and the seventh and eighth degrees
"The minor keys."
adjective: of your secondary field of academic concentration or specialization
adjective: of lesser importance or stature or rank
"A minor poet."
adjective: of lesser seriousness or danger
"Suffered only minor injuries."
adjective: warranting only temporal punishment
adjective: of the younger of two boys with the same family name
"Jones minor."