cheek vs boldness

cheek and boldness both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheek	Yes	No	Yes	No
boldness	Yes	No	No	No

As nouns, cheek and boldness are synonyms defined as:

Other synonyms of cheek include brass, face, nerve.

cheek (noun)	boldness (noun)
impudent aggressiveness	the trait of being willing to undertake things that involve risk or danger
either side of the face below the eyes	the quality of standing out strongly and distinctly
either of the two large fleshy masses of muscular tissue that form the human rump	impudent aggressiveness
an impudent statement

cheek (verb)	boldness (verb)
speak impudently to