officer officer /ˈɔfɪsɝ/

noun

1. () (military) any person in the armed services who holds a position of authority or command  ( military officer , officer )
   (military) any person in the armed services who holds a position of authority or command
    An officer is responsible for the lives of his men
   an officer is responsible for the lives of his men
   
   
2. () Someone who is appointed or elected to an office and who holds a position of trust  ( officeholder , officer )
   someone who is appointed or elected to an office and who holds a position of trust
    He is an officer of the court
   he is an officer of the court
    The club elected its officers for the coming year
   the club elected its officers for the coming year
   
   
3. () A member of a police force  ( police officer , officer , policeman )
   a member of a police force
    It was an accident, officer
   it was an accident, officer
   
   
4. () A person authorized to serve in a position of authority on a vessel  ( ship's officer , officer )
   a person authorized to serve in a position of authority on a vessel
    He is the officer in charge of the ship's engines
   he is the officer in charge of the ship's engines
   
   

verb

1. () Direct or command as an officer  ( officer )
   direct or command as an officer