seizer vs abductor

seizer and abductor both are nouns.

Word	Noun	Adjective	Verb	Adverb
seizer	Yes	No	No	No
abductor	Yes	No	No	No

As nouns, abductor is a hypernym of seizer; that is, abductor is a word with a broader meaning than seizer:

seizer: a kidnapper who drugs men and takes them for compulsory service aboard a ship
abductor: someone who unlawfully seizes and detains a victim (usually for ransom)

Other hypernyms of seizer include kidnaper, kidnapper, snatcher.

seizer (noun)	abductor (noun)
a kidnapper who drugs men and takes them for compulsory service aboard a ship	a muscle that draws a body part away from the median line
	someone who unlawfully seizes and detains a victim (usually for ransom)