framenoun(STRUCTURE)

frame of reference | American Dictionary

frame of reference
noun[ C ]
us/ˈfreɪm əv ˈref·ər·əns, ˈref·rəns/pluralframes of reference
a set of ideas or facts that a person accepts and that influences the person’s behavior, opinions, or decisions:
The report provided a common frame of reference for discussing public policy.
physics
A frame of reference is also a system of lines and clocks that you can use to measure the position and motion of a set of objects and events in relation to each other.