Definitions of older:

• adjective:   used of the older of two persons of the same name especially used to distinguish a father from his son
• adjective:   old in experience

  Example: "The older soldiers"

• adjective:   advanced in years; (`aged' is pronounced as two syllables)
• adjective:   older brother or sister
• name:  A surname (very rare: popularity rank in the U.S.: #42638)