convict vs thug

convict

verb
  • To convince, persuade; to cause (someone) to believe in (something). 

  • To find guilty, as a result of legal proceedings, or (informal) in a moral sense. 

noun
  • A person convicted of a crime by a judicial body. 

  • The convict cichlid (Amatitlania nigrofasciata), also known as the zebra cichlid, a popular aquarium fish, with stripes that resemble a prison uniform. 

  • A person deported to a penal colony. 

  • A common name for the sheepshead (Archosargus probatocephalus), owing to its black and gray stripes. 

thug

verb
  • To commit acts of thuggery, to live the life of a thug, or to dress and act in a manner reminiscent of someone who does. 

noun
  • One of a band of assassins formerly active in northern India who worshipped Kali and offered their victims to her. 

  • One who, usually as a result of social disadvantage, has turned to committing crimes (e.g. selling drugs, robbery, assault, etc.) to make a living; a gangsta. 

  • An over-vigorous plant that spreads and dominates the flowerbed. 

  • Someone with an intimidating and unseemly appearance and mannerisms, who treats others violently and roughly, often for hire. 

  • A punk; a hoodlum; a hooligan. 

  • A wooden bat used in the game of miniten, fitting around the player's hand. 

How often have the words convict and thug occurred in a corpus of books? (source: Google Ngram Viewer )