abductor vs captor

abductor and captor both are nouns.

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

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

abductor: someone who unlawfully seizes and detains a victim (usually for ransom)
captor: a person who captures and holds people or animals

Other hypernyms of abductor include capturer, criminal, crook, felon, malefactor, outlaw.

abductor (noun)	captor (noun)
a muscle that draws a body part away from the median line	a person who captures and holds people or animals
someone who unlawfully seizes and detains a victim (usually for ransom)