leer vs sneer

leer and sneer both are nouns.

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

As nouns, leer and sneer are synonyms defined as:

leer and sneer: a facial expression of contempt or scorn; the upper lip curls

leer (noun)	sneer (noun)
a suggestive or sneering look or grin	a facial expression of contempt or scorn; the upper lip curls
a facial expression of contempt or scorn; the upper lip curls	a contemptuous or scornful remark

leer (verb)	sneer (verb)
look suggestively or obliquely; look or gaze with a sly, immodest, or malign expression	smile contemptuously
	express through a scornful smile