rob vs extort

rob and extort both are verbs.

Word	Noun	Adjective	Verb	Adverb
rob	No	No	Yes	No
extort	No	No	Yes	No

As verbs, extort is a hyponym of rob; that is, extort is a word with a more specific, narrower meaning than rob:

Other hyponyms of rob include gouge, rack, squeeze, wring.

rob (verb)	extort (verb)
take something away by force or without the consent of the owner	get or cause to become in a difficult or laborious manner
rip off; ask an unreasonable price	obtain by coercion or intimidation
	obtain through intimidation