sensible horizon vs skyline

sensible horizon and skyline both are nouns.

Word	Noun	Adjective	Verb	Adverb
sensible horizon	Yes	No	No	No
skyline	Yes	No	No	No

As nouns, sensible horizon and skyline are synonyms defined as:

sensible horizon and skyline: the line at which the sky and Earth appear to meet

Other synonyms of sensible horizon include apparent horizon, horizon, visible horizon.

sensible horizon (noun)	skyline (noun)
the line at which the sky and Earth appear to meet	the line at which the sky and Earth appear to meet
	the outline of objects seen against the sky