scope vs expanse

scope and expanse both are nouns.

Word	Noun	Adjective	Verb	Adverb
scope	Yes	No	No	No
expanse	Yes	No	No	No

As nouns, expanse is a hyponym of scope; that is, expanse is a word with a more specific, narrower meaning than scope:

scope (noun)	expanse (noun)
electronic equipment that provides visual images of varying electrical quantities	the extent of a 2-dimensional surface enclosed within a boundary
a magnifier of images of distant objects	a wide scope
an area in which something acts or operates or has power or control:	a wide and open space or area as of surface or land or sky
the state of the environment in which a situation exists