bond servant vs slave

bond servant and slave both are nouns.

Word	Noun	Adjective	Verb	Adverb
bond servant	Yes	No	No	No
slave	Yes	No	Yes	No

As nouns, slave is a hypernym of bond servant; that is, slave is a word with a broader meaning than bond servant:

bond servant (noun)	slave (noun)
someone bound to labor without wages	a person who is owned by someone
	someone who works as hard as a slave
	someone entirely dominated by some influence or person

bond servant (verb)	slave (verb)
	work very hard, like a slave