younger
1. [ adjective ] used of the younger of two persons of the same name especially used to distinguish a son from his father
Synonyms: jr.
Examples:

"John Junior" "John Smith, Jr."

Related terms: junior
2. [ adjective ] younger brother or sister
Synonyms: little
Examples:

"little brother"

Related terms: big
3. [ noun ] Last name, frequency rank in the U.S. is 2870
Similar spelling:   Yonker
  younker
  Yonkers
  Youngren
  young_girl