discretion vs discernment

discretion and discernment both are nouns.

Word	Noun	Adjective	Verb	Adverb
discretion	Yes	No	No	No
discernment	Yes	No	No	No

As nouns, discretion and discernment are synonyms defined as:

As nouns, discernment is a hypernym of discretion; that is, discernment is a word with a broader meaning than discretion:

discretion: knowing how to avoid embarrassment or distress
discernment: the mental ability to understand and discriminate between relations

Other hypernyms of discretion include judgement, judgment, sagaciousness, sagacity.

As nouns, discernment is a hypernym of discretion; that is, discernment is a word with a broader meaning than discretion:

Other hypernyms of discretion include appreciation, perceptiveness, taste.

discretion (noun)	discernment (noun)
the trait of judging wisely and objectively	the trait of judging wisely and objectively
the power of making free choices unconstrained by external agencies	the mental ability to understand and discriminate between relations
knowing how to avoid embarrassment or distress	the cognitive condition of someone who understands
refined taste; tact	perception of that which is obscure
freedom to act or judge on one's own	delicate discrimination (especially of esthetic values)