scope

noun

1.
an area in which something acts or operates or has power or control:
umbrealm worldwide yondfetching ambit compass orbit range reach
Derived from:
scopal
2.
the state of the environment in which a situation exists
umsetting background setting
Derived from:
scopal
3.
a magnifier of images of distant objects
telescope
4.
electronic equipment that provides visual images of varying electrical quantities
cathode-ray oscilloscope CRO oscilloscope