Minor

adj. lesser in size, small; secondary; subordinate; junior; under legal age; insignificant, unimportant; minor scale (Music); not serious (of an illness)

n. youth who is not of legal voting age; secondary area of study in a college degree

Minor means not important. It may also may refer to:MathematicsMinor (linear algebra), for a given matrix, its minor is the determinant of a certain smaller matrixMinor (graph theory),
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The River Miñor ( Río Miñor) is a river of Galicia, Spain.
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adj. minor, minor scale (Music)

(n.)
The minor term, that is, the subject of the conclusion; also, the minor premise, that is, that premise which contains the minor term; in hypothetical syllogisms, the categorical premise. It is the second proposition of a regular syllogism, as in the following: Every act of injustice partakes of meanness; to take money from another by gaming is an act of injustice; therefore, the taking of money from another by gaming partakes of meanness.
  

(n.)
A person of either sex who has not attained the age at which full civil rights are accorded; an infant; in England and the United States, one under twenty-one years of age.
  

(n.)
A Minorite; a Franciscan friar.
  

(a.)
Less by a semitone in interval or difference of pitch; as, a minor third.
  

(a.)
Inferior in bulk, degree, importance, etc.; less; smaller; of little account; as, minor divisions of a body.
  

A person below the age of legal majority. Since the treatment of minors in the criminal law varies significantly throughout the EU, this area may be excluded from the scope of EU efforts to develop mutual recognition of decisions in criminal cases. (See judicial-criminal)