advocate

Noun

• a lawyer who pleads cases in court

• a person who pleads for a cause or propounds an idea

Verb

• speak, plead, or argue in favor of
  • The doctor advocated a smoking ban in the entire house
    

• push for something
  • The travel agent recommended strongly that we not travel on Thanksgiving Day
    

Related words

• Synonyms: 
  counsel , counselor , counsellor , counselor-at-law , pleader , advocator , proponent , exponent , preach , recommend , urge