snacker vs nosher

snacker and nosher both are nouns.

Word	Noun	Adjective	Verb	Adverb
snacker	Yes	No	No	No
nosher	Yes	No	No	No

As nouns, snacker and nosher are synonyms defined as:

snacker and nosher: someone who eats lightly or eats snacks between meals

snacker (noun)	nosher (noun)
someone who eats lightly or eats snacks between meals	someone who eats lightly or eats snacks between meals