snatcher vs kidnapper

snatcher and kidnapper both are nouns.

Word	Noun	Adjective	Verb	Adverb
snatcher	Yes	No	No	No
kidnapper	Yes	No	No	No

As nouns, snatcher and kidnapper are synonyms defined as:

snatcher and kidnapper: someone who unlawfully seizes and detains a victim (usually for ransom)

Other synonyms of snatcher include abductor, kidnaper.

snatcher (noun)	kidnapper (noun)
someone who unlawfully seizes and detains a victim (usually for ransom)	someone who unlawfully seizes and detains a victim (usually for ransom)
a thief who grabs and runs