Webster's English Dictionary

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advise

ad.vise or ad.vi.sor \*d-'vi-z\ \-'vi--z*r\ vb [MF advisen, fr. OF aviser, 
   fr. avis] 1a: to give advice to : COUNSEL  1b: CAUTION, WARN  1c: RECOMMEND 
    2: to give information or notice to : INFORM  : to take counsel : CONSULT  
   - ad.vi.ser n