mentor
noun /ˈmentɔː(r)/
  /ˈmentɔːr/
- an experienced person who advises and helps somebody with less experience over a period of time- She was a friend and mentor to many young actors.
- His former coach had remained his mentor throughout his career.
 Oxford Collocations DictionaryMentor is used after these nouns:- faculty
- peer
 
- an experienced person in a company, university, etc. who trains and advises new employees or students- Regular meetings between mentor and trainee help guide young engineers through their early years.
- The company runs a mentor programme.
 
Word Originmid 18th cent.: via French and Latin from Greek Mentōr, the name of the adviser of the young Telemachus in the Greek epic poem the Odyssey by Homer.