frame of reference

frame (noun) + of + reference (noun)

frame of reference (plural frames of reference)

1. A set of assumptions, ideas and standards that form a viewpoint from which philosophical, religious and other ideas may be evaluated.

   Anyone with an unsubverted or cleansed frame of reference likely couldn't bear seeing such mistreatment and violence.

2. (physics) A set of axes which enable an observer to measure the position and motion of all bodies in some system relative to the reference frame.

• inertial frame of reference

• relativity

• frame of reference on Wikipedia.Wikipedia