Noun villain has 2 senses
  1. villain, scoundrel - a wicked or evil person; someone who does evil deliberately
    --1 is a kind of unwelcome person, persona non grata
    --1 has particulars:
     cad, bounder, blackguard, dog, hound, heel; gallows bird; rogue, knave, rascal, rapscallion, scalawag, scallywag, varlet; villainess
  2. villain, baddie - the principle bad character in a film or work of fiction
    --2 is a kind of character, role, theatrical role, part, persona