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English definition of “frame of reference”

frame of reference

noun [C]  /ˈfreɪm əv ˈref·ər·əns, ˈref·rəns/ ( plural frames 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.
(Definition of frame of reference from the Cambridge Academic Content Dictionary © Cambridge University Press)
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