warn

Verb

• notify, usually in advance
  • I warned you that I would ask some difficult questions
    

• ask to go away
  • The old man warned the children off his property
    

• admonish or counsel in terms of someone's behavior
  • I warned him not to go too far
    
  • I warn you against false assumptions
    
  • She warned him to be quiet
    

• notify of danger, potential harm, or risk
  • The director warned him that he might be fired
    
  • The doctor warned me about the dangers of smoking
    

Related words

• Synonyms: 
  discourage , admonish , monish