Taxonomy of meanings for 公子:  

  • YOU
    • NP[post=npro_2]you, the prince (not necessarily of the same country)
  • PRINCE
    • NP=Nprprince Npr
    • NPindefinitea prince
    • NPcprince
    • NPautonymprince
    • NPpost-N{PLACE}prince of NDS
  • CHILD
    • NP{N1adN2}young man