output vs output signal

output and output signal both are nouns.

Word	Noun	Adjective	Verb	Adverb
output	Yes	No	Yes	No
output signal	Yes	No	No	No

As nouns, output and output signal are synonyms defined as:

output (noun)	output signal (noun)
production of a certain amount	signal that comes out of an electronic system
final product; the things produced
what is produced in a given time period
signal that comes out of an electronic system
the quantity of something (as a commodity) that is created (usually within a given period of time)

output (verb)	output signal (verb)
to create or manufacture a specific amount