scruples vs conscience

scruples and conscience both are nouns.

Word	Noun	Adjective	Verb	Adverb
scruples	Yes	No	No	No
conscience	Yes	No	No	No

As nouns, scruples and conscience are synonyms defined as:

scruples and conscience: motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions

Other synonyms of scruples include moral sense, sense of right and wrong.

scruples (noun)	conscience (noun)
motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions	conformity to one's own sense of right conduct
	a feeling of shame when you do something immoral
	motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions