a, e, f, n, c, m, r are letters that make 'reference frame'
ER, RAM, AM, re, ref, en, refer, CE, frame, reference, ram, RA, ME, NC, Ra, Re, Ram, Am, Ce, Er, Fr, Fe are words within 'reference frame'
1 possible definitions for 'reference frame'
Under this definition, reference frame is a noun and has the following properties:
coordinate system, frame of reference, reference system have the same meaning as 'reference frame'
'reference frame' can be a type of arrangement, organization, organisation, system.
Cartesian coordinate system, inertial reference frame, inertial frame, space-time, space-time continuum are types of 'reference frame'.
coordinate axis is a part of reference frame.