kidnapper vs snatcher

kidnapper and snatcher both are nouns.

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

As nouns, kidnapper and snatcher are synonyms defined as:

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

Other synonyms of kidnapper include abductor, kidnaper.

kidnapper (noun)	snatcher (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