contempt vs sneer

contempt and sneer both are nouns.

Word	Noun	Adjective	Verb	Adverb
contempt	Yes	No	No	No
sneer	Yes	No	Yes	No

As nouns, sneer is a hyponym of contempt; that is, sneer is a word with a more specific, narrower meaning than contempt:

Other hyponyms of contempt include fleer, leer.

contempt (noun)	sneer (noun)
a willful disobedience to or disrespect for the authority of a court or legislative body	a facial expression of contempt or scorn; the upper lip curls
a manner that is generally disrespectful and contemptuous	a contemptuous or scornful remark
open disrespect for a person or thing
lack of respect accompanied by a feeling of intense dislike

contempt (verb)	sneer (verb)
	smile contemptuously
	express through a scornful smile