reference
US /ˈref.ɚ.əns/
UK /ˈref.ɚ.əns/

1.
the action of mentioning or alluding to something
:
•
He made a brief reference to his past.
•
The book contains many references to classical literature.
2.
3.
a person who can provide information about your character and abilities
:
•
She listed her former manager as a reference.
•
Do you have any professional references?