Definitions of minor:

• noun:   a young person of either sex
• adjective:   limited in size or scope
• adjective:   inferior in number or size or amount

  Example: "A minor share of the profits"

• adjective:   lesser in scope or effect

  Example: "Had minor differences"

• adjective:   not of legal age

  Example: "Minor children"

• adjective:   of a scale or mode

  Example: "The minor keys"

• adjective:   of your secondary field of academic concentration or specialization
• adjective:   of lesser importance or stature or rank

  Example: "A minor poet"

• adjective:   of lesser seriousness or danger

  Example: "Suffered only minor injuries"

• adjective:   warranting only temporal punishment
• name:  A surname (common: 1 in 8333 families; popularity rank in the U.S.: #1014)